Nicky Henderson expects a second blood test on Monday to be the “acid test” in Constitution Hill’s race against time to be fit for the Cheltenham Festival.

The unbeaten and defending Champion Hurdle hero worked poorly at Kempton Park on Tuesday, putting his participation at the showpiece meeting in major doubt.

A scope showed mucus in his lungs and despite slightly more positive news in the following days, results of a blood test on Thursday proved to be another blow.

In a statement issued on X on Friday, Henderson revealed the results of a second scope were more encouraging, but admits his stable star is still “unwell” with his intended return to action in the Cotswolds a little over a week away.

Henderson said: “On what was about as foul and filthy morning as you can imagine at Seven Barrows, Constitution Hill had a light exercise and was rescoped afterwards as planned. This showed the Neutrophil percentage, indicative of infection, was back to normal parameters with no mucus evident.

“This is obviously positive news but we cannot hide behind yesterday’s blood test which basically reveals that, in simple terms, our horse is ‘unwell’.

“He will have a quiet weekend and we propose, as originally planned, to take a further blood test on Monday which I believe will be the acid test. Therefore I think we might leave it until then to keep everybody updated on the situation.”

World number five Andrey Rublev was sensationally defaulted after being accused of swearing at a line judge in the deciding set of his semi-final at the Dubai Open.

The combustible Russian was trailing 6-5 in the third against Alexander Bublik when he appeared to say something to the line judge.

ATP supervisor Roland Herfel came down to the court accompanied by a Russian speaker, who claimed Rublev had sworn in his native language.

Rublev protested, insisting he was speaking in English, while Bublik also backed his opponent.

“I didn’t say ‘f******’. I swear to God. This is huge. I swear to God,” said Rublev.

The offence would usually merit a warning in the first instance, but the 26-year-old was defaulted by umpire Miriam Bley amid jeers from the crowd in Dubai.

It was a controversial end to a tight match, with Kazakhstan’s Bublik progressing to the final 6-7 (4) 7-6 (5) 6-5.

Celtic manager Brendan Rodgers believes they have been their own worst enemies this season.

But he is optimistic his side can find the consistency of performance they will need during the title run-in.

The cinch Premiership champions delivered their biggest victory of the season on Wednesday when they thrashed Dundee 7-1 with the help of six first-half goals.

Previous league games since the winter break had all been tight and two draws saw Celtic lose top spot in the table to Rangers, who could go five points clear when they host Motherwell on Saturday.

Celtic travel to face Hearts on Sunday, possibly without skipper Callum McGregor, and Rodgers is looking for his side to build on their midweek display.

“I have always felt our biggest enemy this season is ourselves,” he said.

“If we perform to the level that we can do on a consistent basis, we are a very good team. It’s that consistency now of taking that performance into our next game.”

Rodgers has seen Alistair Johnston, Greg Taylor and Cameron Carter-Vickers return to his back four in recent games following injuries.

He is looking to utilise that settled platform in the final months of the season.

“When you arrive at 10 games to go, that’s when the fun begins, that’s when you are into the business side,” he said. “That’s what I am really looking forward to.

“We have obviously had inconsistencies up to this point. But we are still very much there, still very much in our hands what it is we want to do.

“To have these players coming back is great and really good timing.”

McGregor was replaced by Daniel Kelly at half-time against Dundee, with the 18-year-old scoring his first goal on his league debut.

“Callum came off at half-time during the week,” Rodgers said. “He felt his Achilles a little bit and his calf.

“I know from speaking to him, at this time of the year he does normally feel a little bit because he does play so much.

“So we just have to assess that and see where he is over the next 24 hours.”

McGregor has played further forward in the past two games after the return of Tomoki Iwata, who missed two months of action after picking up a knock.

The Japanese midfielder has seized his latest opportunity after making only 10 starts during his first 12 months as a Celtic player.

“He anchors that midfield for us and allows Cal to move on,” Rodgers said.

“He is a very good player but he has missed a lot of this season, moments where it looked like he was going to get his run in the team, he was out injured.

“So that’s been the challenging time for him and then it was just been about getting him up to speed and getting him in at the right time.

“I am really pleased for him because he has given his all in training and he has waited for that opportunity.

“This was a midfield that was very difficult for players to get into.

“If you look at Matt O’Riley, with all due respect, Matt wasn’t really starting last year. You had Callum, Reo Hatate and Aaron Mooy playing a lot of the games. He has come in and had a fantastic season, Matt, and Tomo has had to be patient.

“But I trust him, when he does come in. He plays the game simple, he is dynamic in winning the ball back and he has performed really well in these last two games.”

JPR Williams’ life as a rugby “revolutionary” and family man was remembered at a memorial service for the former Wales and British Lions full-back.

Williams died in January at the age of 74 and former team-mates from Welsh rugby’s golden 1970s era were among those who gathered at Llandaff Cathedral in Cardiff to celebrate his life on St David’s Day.

The tough-as-teak Williams gained a worldwide reputation for his fearless defensive play, rock-solid safety under a high ball and attacking prowess.

Williams won seven Five Nations titles, six Triple Crowns and three Grand Slams as Wales dominated the 1970s and starred on two victorious Lions tours, to New Zealand in 1971 – the only time they have won there – and in South Africa, three years later.

“On the field he was a revolutionary,” said John Taylor, a former London Welsh and Wales team-mate and Williams’ best man when he married wife Priscilla.

“JPR ripped up the rule book from the start. Wales went from 1934 to 1967 without a try from a full-back until Keith Jarrett scored there and he was really a centre.

“JPR scored six, five against England. He was the scourge of the men in white and the most competitive animal I’ve ever met.

“Nobody created the extra man better than he did.”

Williams’ love of music, he was a boy soprano – with his young voice played over a loud speaker in the Cathedral – before developing in to a rich baritone, was reflected during the service.

There were five hymns and a piece of reflection from the Bridgend Tabernacle Choir, of which Williams was a member and where he played the organ.

Williams, an orthopaedic surgeon who had studied at St Mary’s Hospital in London, also played the piano and the violin and the service concluded with a stirring rendition of the Welsh National Anthem, ‘Hen Wlad Fy Nhadau’.

Williams’ four children – Lauren, Annelise, Francine and Peter – read during a service where their father’s sporting prowess was recalled.

From 55 Wales caps – a world record upon his retirement in 1981 – to Lions tours; from winning a British junior competition at the All England Club, Wimbledon by beating former Great Britain Davis Cup captain David Lloyd to representing Wales’ senior squash team.

With his flowing long hair, sideburns and socks rolled down, Williams was an instantly-recognisable figure on the rugby field and was still playing for village team Tondu well into his 50s.

“I spent so much of my career on the field with JPR,” said Wales and Lions colleague Sir Gareth Edwards.

“He was a tremendous innovator and changed the full-back position virtually overnight.

“He would carry the ball back like a guided missile and had so many ways to beat the challenge of a defender.

“Whenever there were fisticuffs, he would run up and say ‘wait for me’. Phil (Bennett) and I would be running the other way.

“He was fearless, resilient and competitive – the ultimate warrior.”

Welsh Rugby Union president Terry Cobner described his former team-mate as “an icon and role model”, saying he had inspired a generation of youngsters “not only in Wales but throughout the world”.

Former Wales and Lions centre John Devereux recalled the impact Williams had on his local team Bridgend, both as a player and club president in later life.

Paying tribute at the service, journalist Peter Jackson said: “JPR – ‘the three most famous initials in the history of sport – initials that will forever evoke memories of glory days.”

Mauricio Pochettino believes his Chelsea players have learned to “understand each other” after what he called the hardest week of his Stamford Bridge tenure.

The extra-time defeat to Liverpool in last Sunday’s Carabao Cup final denied his young side, who are 11th in the Premier League, the chance to lift silverware in what has so far been a trying season.

They were then given a scare by Championship side Leeds on Wednesday, requiring a last-minute goal from Conor Gallagher to win through to the FA Cup quarter-finals having fallen behind early and then been pegged back to 2-2 in the second half.

There has been much criticism of the nature of the loss at Wembley, coming after the team missed a host of chances during normal time and failed to win out against a Liverpool side beset by injury and featuring four inexperienced academy graduates by the end of the game.

Pochettino was asked whether the fallout from that defeat has given him his toughest spell in the job since taking over in July last year.

“Maybe yes,” he admitted. “We feel very disappointed. We had faith to win, we were so close. After 90 minutes we were the better side. The last 15, 20 minutes we created many big chances to score and win the game.

“Then the energy dropped and we didn’t keep the energy after 90 minutes. That’s why we lost the game. We’re all really disappointed because we put in too much energy to try to win. I think we deserved it.

“We met after the game (Sunday), in a different place away from Wembley. The players started to feel the good spirit. (They were) disappointed and (it was) painful.

“But Monday and Tuesday we were very open. All the players wanted to play. Some were tired with some problems, but everyone wanted to play against Leeds. That speaks highly about the squad.

“They are learning, to compete all together, to feel each other, to know how they behave in this level when it’s a final, with not too much experience.

“They start to understand each other, that’s the most important thing. After seven or eight months, we already know the profile of the players, how they behave.

“But it’s important for them to know each other, to know how they will react under high pressure and high stress.”

Defenders Thiago Silva and Marc Cucurella will be assessed ahead of Saturday’s meeting with Brentford at the Gtech Stadium.

Silva has missed the last five games with injury while Cucurella has not featured since early December.

However, Pochettino confirmed that a hamstring injury is likely to keep Christopher Nkunku out for around four weeks.

The 26-year-old had to wait until December to make his Chelsea debut after joining from RB Leipzig in the summer, having required surgery on a knee injury picked up in pre-season.

He has made only seven league appearances as he has struggled to attain match fitness, scoring twice.

“It’s bad luck to suffer again a setback,” said Pochettino. “It’s tough for a player that hasn’t played too much this season.

“He came from Germany with some problems. He was so good in pre-season. It’s a difficult season for him. It’s difficult to accept.

“I say it’s bad luck because I don’t have the information and knowledge about medicine to say why this type of injury happens.”

Pep Guardiola has stressed the importance of remaining calm ahead of this weekend’s Manchester derby.

The Manchester City manager wants to take the emotion out of Sunday’s crunch Premier League visit of United.

The encounter marks the start of a critical month for champions City in their bid to win a fourth successive title, with games against rivals Liverpool and Arsenal to follow.

City have held the upper hand over United in recent years, and the form of the Old Trafford side this season has been patchy, but Guardiola is well aware of the pitfalls of this fixture.

Guardiola said: “There have been good seasons (for United). With Jose Mourinho for one season and Ole (Gunnar Solskjaer) they finished second, fighting – not until the end – but they were (up) there.

“What I learn from my experience in these types of games is to be more calm, relax, don’t talk about many things, just focus on tactics and what you have to do to beat them, not about emotions – because emotions will be there, without doubt.

“That is why we relax and prepare for the game as best as possible, knowing the quality.

“For United to go to Wolves and beat them and Luton, and have the quality to beat Aston Villa a few weeks ago, so they have incredible quality.

“From one action, they create something special in set-pieces, transitions, and in open play. They have connections with players and they score goals. It always has been that way with United.

“When they play good, they win games. We are in March and they’ve just lost one game this year – last week at home – so the consistency they have is there.”

City are not only chasing another Premier League title but seeking to win unprecedented back-to-back trebles.

Their success has made them the dominant force in English football over the past decade, but Guardiola has warned there is no guarantee it will continue.

He said: “The 80s was Liverpool, 90s United and now we have won seven Premier Leagues in the last 11 or 12 years.

“But in 50 or 60 years, there has never been one country where one team always dominates and controls everything. We will try in this organisation to extend this as much as possible for many years.”

New United co-owner Sir Jim Ratcliffe has spoken of his ambition to knock City “off their perch” within three years after a prolonged period of relative decline at Old Trafford, under various managers.

“Sir Jim Ratcliffe and his people know the diagnosis of their club,” Guardiola said. “I don’t know anything about that club.

“If they said they need two or three years to be there, who am I to say the opposite? I’m pretty sure they will work to reduce the gap, but I’m not there, I don’t know the diagnosis.

“But I would say at big clubs you have to win and win, not just United.

“It’s not easy for United to come from an incredibly successful period with Sir Alex (Ferguson) and cope with that, that is not easy. Sometimes I can understand it. Today everyone has a lot of pressure.”

Caribbean athletes experienced a mix of success and challenges on the opening day of the World Athletics Indoor Championships in Glasgow, Scotland on Friday.

Jamaican sprinter Ackeem Blake showcased his speed in the 60-metre dash, winning his heat in 6.55. Although he stands as the third-fastest in the world this year at 6.45, Blake is fifth-fastest heading into the semi-finals. Notably, gold-medal favorite Christian Coleman dominated the heats with a remarkable run of 6.49.

Mario Burke of Barbados is also through to the semi-final round after he finished second to Coleman in 6.58. Also through is Rikkoi Brathwaite of the British Virgin Islands, who ran a season-best 6.62 for fourth-place in Coleman’s heat.

Coleman’s compatriot, Noah Lyles, who is also in contention for the gold medal won his heat in 6.57.

The 60m semi-finals and finals are set for later on Friday.

Rusheen McDonald, also from Jamaica, delivered a lifetime best performance in the 400m, clocking an impressive 46.25. He finished second in his heat behind the Czech Republic’s Matej Krsek (46.07), securing his place in the next round.

Trinidad and Tobago's defending champion Jereem Richards faced a close call in the 400m, finishing fourth in his heat with a time of 47.04. However, Richards secured a spot in the next round ahead of the USA’s Jacory Patterson, credited with a similar time.

In the women's events, Stacey-Ann Williams from Jamaica advanced in the 400m, clocking 52.16. Williams entered the competition with a season best of 51.86 and secured a spot as one of the fastest losers after finishing fourth in her heat, won by Netherlands’ Lieke Laver in 51.31.

Despite these successes, the challenges were evident. Charokee Young faced disappointment in the 400m, finishing third in her heat with a time of 53.06. Shalysa Wray of the Cayman Islands and Yanique Haye-Smith of the Turks and Caicos produced season-best performances but will take no further part in the competition.

In the 800m, Natoya Goule Toppin advanced to the semi-final round with a second-place finish in her heat, clocking 2:00.83. She opened her season in a competitive field, with Ethiopia’s Habitam Alemu winning the heat in 2:00.50.

In the shot put final, Danielle Thomas Dodd threw a season-best 19.12m, earning sixth place. Canada’s Sarah Mitton claimed gold with a throw of 20.22m, followed by Germany’s Yemisi Ogunleye with a lifetime best of 20.19m for the silver medal. The USA’s Chase Jackson (nee’ Ealey) secured the bronze with a throw of 19.67m.

Philippe Clement revealed a specialist is looking into Oscar Cortes’ muscle injury, with no time frame yet for the Rangers winger’s return.

The 20-year-old Colombia international hit the ground running after joining the Light Blues on loan from Lens last month, with the Govan club having an option to buy in the summer.

Cortes scored his first goal for Rangers in the 5-0 thumping of Hearts at Ibrox last weekend but had to come off during the 2-1 win over Kilmarnock at Rugby Park on Wednesday night which kept the Light Blues two points clear of Celtic at the top of the cinch Premiership.

The Belgian boss confirmed striker Kemar Roofe and midfielder Ryan Jack would return to the squad for the home game against Motherwell on Saturday, but on Cortes he said: “Oscar will be out, I don’t know how long.

“We are looking into that with the doctor and specialist.

“It is a muscle injury, but I cannot say much more at the moment.

“I don’t want to speak about a half-empty glass.

“I am focused now on the players who are available for this game, because otherwise I would have lost a lot of energy in the last couple of months and that is useless.

“It is a pity for him and the team, yes, it is an opportunity for another player to show it and to do it, it works like that.”

Paul Robson is keen for Cannock Park to make the most of home advantage in the bet365 Premier Novices’ Hurdle at Kelso on Saturday.

The six-year-old has enjoyed a fine season so far, winning a Bangor bumper and a maiden hurdle at Cheltenham before finishing a fine third behind Jango Baie as a 40-1 shot for the inaugural running of the Formby Novices’ Hurdle at Aintree on Boxing Day.

With Nicky Henderson’s Jango Baie again in opposition, Robson is fully aware his stable star his work cut out to turn tables, but is delighted the rematch is taking place on his local track.

“Cannock Park is in great fettle and seems very well in himself,” he said.

“There’s no pressure as he’s been beaten by Jango Baie in the past and the betting suggests he’ll get beaten again. We’re going there very hopeful, but without any pressure.

“He (Jango Baie) is still going to have to come and get us as it is probably the first time we’re going to have our ground. If you go down through the horse’s pedigree he wants top of the ground, we’re going to get it on Saturday and Craig Nichol (jockey) knows Kelso like the back of his hand.

“Jango Baie has got to come six hours up the road and we’ve got 20 minutes to go down the road, so I’m absolutely thrilled we’ve got a race of this magnitude at Kelso.

“Whether six hours travelling will equate to the 12 lengths he beat us at Aintree, probably not, but he did get beat the last day so it’s not as if he’s super human. We’ll have a crack at him anyway.”

Jango Baie was impressive at Aintree, but was no match for Ben Pauling’s Handstands in the Sidney Banks Memorial Novices’ Hurdle at Huntingdon last month.

Pauling is represented this weekend by Personal Ambition, who has his sights raised after notching a second win from three starts over hurdles at Doncaster early in the new year.

Pauling said: “He’s in great order and this has been the aim for a long time. The ground will be fine and two-mile-two is ideal, so I’m looking forward to seeing how he gets on.

“He won first time over hurdles at Warwick as he liked, beating Jingko Blue of Nicky’s, who I think is a decent horse and has since won a handicap at Sandown very nicely.

“We then went to Sandown for a Grade Two novice where he got stuck in the mud and nothing really went his way, then he went up to Doncaster and did it as he liked, so I think he’s fairly unexposed.

“He’s in very good form and seems to be going the right way, so hopefully he can put up a good show.”

Stuart Crawford’s Brucio is an interesting contender from Ireland, having followed up a low-key win at Catterick with a wide-margin handicap victory at the Dublin Racing Festival at Leopardstown.

Crawford said: “She seems in good form at home, hopefully she’s in as good a form as what she was going to Leopardstown.

“We were torn between going for the Morebattle and going for the novice race on Saturday and if the handicapper is right, she probably is better off in the novice. She’s carrying less weight and she’s higher rated than most of her rivals in it.

“Things have just fallen right for her and hopefully she can put in another big run this weekend.”

Marco Ghiani has been given a 34-day suspension following a referral from the Whip Review Committee.

Ghiani, who was crowned Britain’s champion apprentice in 2021, is set for a lengthy spell on the sidelines having been found in breach of the whip rules for the fifth time in the last six months.

Nine days of his ban have been deferred for six months and he has also been instructed to complete a two-day training course.

Ghiani has enjoyed plenty of big-race success during his relatively short career so far, scoring aboard Saeed bin Suroor’s Real World in the Hunt Cup at Royal Ascot and in Group-race company in 2021.

Having subsequently served a six-month suspension after testing positive for cocaine, the Sardinian native enjoyed two Group Three wins on foreign soil last year, with Jane Chapple-Hyam’s Mill Stream in France and in the Italian St Leger aboard the Mick Appleby-trained Roberto Escobarr.

Apprentice rider Tommie Jakes has also been suspended for 24 days, with eight days deferred for six months. He too will have to complete a two-day training course before his return to the saddle.

Liverpool manager Jurgen Klopp believes their current status as Premier League leaders has made a “statement” but knows the situation can quickly unravel.

Their lead over Manchester City is a point and two over third-placed Arsenal, but Klopp admitted maintaining their winning run was the only way to stay ahead of the chasing pack and their advantage was balanced on a knife edge due to injuries ravaging his squad.

There are similarities to two years ago when Liverpool also had 60 points after 26 matches – although that was only good enough to be three points behind City – and were chasing another quadruple.

On that occasion they finished with a domestic cup double but finished runners-up in the league by a point on 92 and lost the Champions League final.

However, with 10 first-team players still currently sidelined, Klopp said the two campaigns were not comparable.

“It is only one point above City and two points above Arsenal but that means nothing,” he said.

“Sixty points is a statement for that moment in the season but stay on 60 and I am not sure you qualify for the Champions League to be honest so we had better continue winning football games.

“It was a much more comfortable squad situation (two years ago). As far as I remember we could make massive changes between competitions.

“You cannot really compare it but it showed us you can fight for everything and win something.

“Some people will be happy with that and some will tell you it was not enough but for us, it was a successful season and let’s hope we can make a successful season out of this one.”

Leading scorer Mohamed Salah is set to return to training next week, probably two weeks behind schedule, but Klopp will have fellow forward Darwin Nunez and midfielder Dominik Szoboszlai available for Saturday’s trip to Nottingham Forest after missing three and six matches out respectively.

“I don’t think Mo is too far off. It’s like touch and go but I think next week at any point, it is possible,” added Klopp, who also expects to be able to call on midfielder Wataru Endo after his ankle injury at Wembley and left-back back Andy Robertson, who was ill in midweek.

Since their second league defeat of the season at Arsenal a month ago, Liverpool have won five successive matches – one of them being the Carabao Cup final and another an FA Cup fifth-round tie – with a depleted team.

But Klopp denied the result at the Emirates Stadium had given them extra incentive.

“The results are incredibly important but I wouldn’t call it ‘a response to the Arsenal game’, we didn’t use it in that way,” he said.

“I didn’t say ‘Look at that, now we have to show a reaction’. We always have to show a reaction. But first and foremost you have to show a reaction to yourself.

“It was a one-off: Arsenal were really good, we were not as good as we could have been and that can happen in a season.

“But if you can only reach your targets when you win all your games, it is really difficult – not even City did that even when they came close.

“You have to use the lesser good things as much as you have to use the good things and against Arsenal, unfortunately, there were a few more lesser good things.

“But we never used it, it was not ‘Come on boys, we have to show we are not as bad as we were that night’, not at all.”

Tottenham have been dealt a fresh injury blow with Richarlison ruled out for up to four weeks with a knee injury.

Spurs boss Ange Postecoglou has been without several players this season for prolonged periods, but appeared to have an almost fully-fit squad to pick from when Pape Sarr, Yves Bissouma and Son Heung-min returned from international duty last month.

However, Richarlison sustained a knee issue in the 2-1 defeat to Wolves a fortnight ago, while Pedro Porro (muscle) remains out to join Fraser Forster (ankle), Ryan Sessegnon (hamstring) and Manor Solomon (knee) on the treatment table ahead of Saturday’s visit of Crystal Palace.

“Destiny (Udogie) has trained but Pedro is probably another week away,” Postecoglou revealed.

“We do have a couple of (other) injuries. Richarlison is out for three to four weeks. He picked up a knee injury in the last game so he will be out for a little while.

“Richy is disappointed because he’s been a key contributor but again it is kind of how our season has gone. We get one back and lose another.

“With Sess, it is a tough one because through no fault of his own, he has worked hard to come back and it is always more challenging when it happens as a series of events.

“He hasn’t really had any reward for the hard work he has put in, in terms of his rehab, to at least get out there and play, to do what he loves, to show people his ability. It is a tough one for him but he’ll get all the support he needs.

“He has had his surgery now and is still a positive guy. He has been through this before, so hopefully that helps him to come back stronger and get out there playing.”

Jack Grealish is unlikely to be fit for England’s friendlies against Brazil and Belgium later this month, Manchester City manager Pep Guardiola has said.

The City midfielder suffered a recurrence of a recent groin injury in the club’s FA Cup win at Luton on Tuesday.

Grealish was substituted after just 38 minutes of the 6-2 victory at Kenilworth Road, cutting short what had been his first appearance in four games.

He has been ruled out of Sunday’s derby against Manchester United in the Premier League and Guardiola said at a press conference on Friday he was unlikely to play again before the next international break.

Guardiola said: “I don’t think so. I haven’t spoken with (England manager) Gareth (Southgate) but I don’t think he will be ready.

“When he will come back, I don’t know exactly. He will not be fit for this weekend.

“I think he has to recover well. He has had a setback and he has to recover well for us to use him as much as possible.”

England host Brazil at Wembley on March 23 and Belgium three days later as part of their Euro 2024 preparations.

Grealish has had a difficult season having struggled for form and fitness and seen team-mates excel in his place.

The 28-year-old had been one of the most consistent performers during City’s 2022-23 treble-winning campaign.

Guardiola is confident he will bounce back from this latest problem.

The Spaniard said: “Yes, he doesn’t have an alternative. Setbacks in life are always there, it is how you overcome them.”

Christian Horner vowed to go racing after breaking his silence amid the latest allegations whirling around the Red Bull team principal.

Horner’s Formula One future is again in the spotlight after hundreds of WhatsApp messages appearing to be written by him to a female colleague were leaked.

On Wednesday, Horner was cleared to continue as Red Bull team principal following an internal probe into “inappropriate behaviour” by the F1 team’s parent company, Red Bull GmbH. He has always denied the claims.

But just 24 hours later, a number of messages and images apparently exchanged between Horner and the complainant were sent from an anonymous email account to 149 members of the F1 paddock – including FIA president Mohammed ben Sulayem, F1 CEO Stefano Domenicali and the grid’s nine other team principals, as well as members of the media – on the eve of this weekend’s season-opening Bahrain Grand Prix.

Domenicali and Ben Sulayem will meet on Friday to discuss the next steps.

Horner was quizzed about the latest allegations as he made his way from Red Bull’s hospitality suite to the team’s garage for third practice ahead of qualifying.

“I am not going to comment on anonymous speculation from unknown sources,” he said. When asked what comes next, Horner replied: “We go racing.”

It is understood that neither F1’s American owners, Liberty Media, nor its regulator, the FIA, has seen Red Bull GmbH’s report into Horner, which is thought to stretch to 150 pages and was said to be “confidential”.

It is believed that the FIA is considering the legalities of asking Red Bull to hand over its report, and examining if Horner might have breached two clauses of its International Sporting Code.

Article 12.2.1.c states that a competitor will have committed an offence if there was “any fraudulent conduct or any act prejudicial to the interests of any Competition or to the interests of motor sport generally”.

Article 12.2.1.f highlights “any words, deeds or writings that have caused moral injury or loss to the FIA, its bodies, its members or its executive officers, and more generally on the interest of motor sport and on the values defended by the FIA”.

Meanwhile, article 12.2.1.g states that “any failure to cooperate in an investigation” would breach the code.

Horner continues to operate in his role as team principal and CEO, although it is understood there is considerable unease among the team’s plethora of sponsors and partners.

Horner said in a statement on Thursday: “I will not comment on anonymous speculation, but to reiterate I have always denied the allegations.

“I respected the integrity of the independent investigation and fully cooperated with it every step of the way.

“It was a thorough and fair investigation conducted by an independent specialist barrister and it has concluded dismissing the complaint made.

“I remain fully focused on the start of the season.”

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