Mito Pereira tied for Friday's round of the day to shoot his way to the top of the leaderboard after two rounds at the Shriners Children's Open.

Chile's Pereira, who burst onto the scene last season when he led until the final hole at the PGA Championship, shot an eight-under 63 to move to 12 under through 36 holes at TPC Summerlin, posting nine birdies and one bogey.

The only other player to shoot better than 65 on Friday was Robby Shelton, who also enjoyed an eight-under round to climb to outright second at 11 under, birdieing his last hole of the day to elevate himself from the group at 10 under.

Tied for third at 10 under is the trio of Maverick McNealy, and South Korea's representatives at last month's Presidents Cup Tom Kim and Kim Si-woo.

Fellow International team member Cam Davis of Australia is at nine under, tied for sixth with Kevin Streelman and Chad Ramey, while some of the tournament favourites are one further back.

Max Homa and Patrick Cantlay were viewed as the best chances before the event, and they are within striking distance four shots off the pace at eight under, with both shooting back-to-back 67s.

After a strong first day, Im Sung-jae shot a 70 to lose some momentum and head into the weekend at seven under, where he is joined by first-round leader Tom Hoge, who backed up his opening 63 with a one-over 72.

Needing a score of four under to make the cut, rising Canadian Taylor Pendrith and Argentina's Emiliano Grillo snuck in right on the number, while America's Paul Hahn, Scotland's Russell Knox and Ireland's Seamus Power missed out by one.

A new NFL policy on the handling of concussions is expected to go into effect any day now after the Players Association approved proposed protocol changes Friday.

The NFL and NFLPA had previously agreed to a revised protocol that would prohibit players returning to the field if they displayed signs of instability in their motor skills. The union issued a statement Friday requesting that the changes be put in place for this weekend’s games.

"Our union has agreed to change the concussion protocols to protect players from returning to play in the case of any similar incident to what we saw on September 25," the statement read. "We would like these changes to go into effect before this weekend’s game to immediately protect the players and hope the NFL accepts the change before then as well."

The September 25 incident the union referred to occurred in a game between the Miami Dolphins and Buffalo Bills, in which Dolphins quarterback Tua Tagovailoa briefly left the contest with what the team initially termed a head injury.

Tagovailoa later returned to the game after passing concussion tests, with Miami head coach Mike McDaniel saying afterward that the injury was to the quarterback’s lower back.

The Dolphins later cleared Tagovailoa to play at Cincinnati four days after the Buffalo game, and the former Alabama star was injured again on a hit from Bengals defensive tackle Josh Tupou that caused his head to hit the ground hard.

Tagovailoa was stretchered off the field and taken to hospital, and the Dolphins have since ruled him out for Sunday’s game against the New York Jets while confirming a concussion diagnosis.

The NFL later issued a statement saying it intends to also sign off on protocol changes, though it’s unclear when they will begin to be enforced.

"As we have discussed with the NFLPA, we agree that changes to the joint NFL-NFLPA protocols are necessary to further enhance player safety," the league said. "We have already spoken to members of the NFL Head, Neck and Spine Committee and the leadership of the Unaffiliated Neurotrauma Consultants and Independent Certified Athletic Trainers who serve as spotters to discuss these likely changes."

The NFL and the union remain in the process of investigating the Dolphins’ handling of Tagovailoa’s September 25 injury and have yet to determine whether the team erred in judgement or violated protocols.

Nashville Predators coach John Hynes was impressed by the seamless fit of his new signings as they contributed in a major way during the 4-1 win against the San Jose Sharks in the opening game of the NHL season on Friday night.

After signing as an unrestricted free agent in the offseason, Nashville's Kiefer Sherwood opened the scoring just 61 seconds into the action at Prague's O2 Arena. He was assisted by Ryan McDonagh, who arrived from the Tampa Bay Lightning in a trade.

Fellow free agent signing Nino Niederreiter also found the back of the net late in the second period to make it 2-1, before Matt Duchene finished things off with an empty-netter.

Speaking after the game, Hynes said it was nice to see the new faces hit the ground running.

"I thought all the new guys to our team obviously contributed," he said. "A lot of them contributed on the scoreboard, but I thought also just the style of game they played really fits the identity, so it's nice. It's nice for those guys to get off to a good start."

Despite the lopsided score, the Sharks only attempted one less shot (31-32), but Predators goaltender Juuse Saros was sharp, and earned praise from teammate Mattias Ekholm.

"He's that kind of goalie, and he's always our best penalty killer," he said. "On most nights, he's our best player.

"Usually that happens when we win. He's just standing in there for us, and he did tonight. Super excited for him. 

"He's a heck of a goalie, and he makes it a lot easier for us defensemen coming back there."

Ekholm also gave a shout out to the Czech crowd for their enthusiasm in the first regular season game to be played outside of North America since 2019, and looked forward to Saturday night's rematch.

"[The atmosphere] was great," he said. "Sold out. I mean, it was awesome, and that was Friday night. I can't wait for Saturday night."

It was also a memorable night for San Jose's Tomas Hertl, who was born and raised in Prague and used this same arena for his home games when playing for Slavia Praha HC.

Hertl scored the Sharks' only goal, with coach David Quinn shining a light on the achievement after his first game in charge.

"It was a pretty special moment, obviously," he said. "He's been thinking about that for a long time. 

"Obviously happy for him, and the team, I thought, got a little bit inspired by that. I thought they played better after that. Unfortunately, we only got one.

"For the most part, I thought, up until they made it 3-1, we were hanging around. I liked some of the things we were doing. 

"But once they made it 3-1, I really thought there was a huge disparity in the way they played compared to the way we played.

"I thought the last 25 minutes, they really took it to us, and I thought we got a little bit demoralized. We've got to toughen up a little bit mentally in that department."

Home favourite Ons Jabeur was on the end of a big upset at the Jasmin Open on Friday as the world number two was eliminated by Claire Liu in the quarter-finals.

Jabeur saw off Ann Li and Evgeniya Rodina in straight sets to reach the last eight, but Liu – ranked 73 in the world – came out on top 6-3 4-6 6-4.

Liu is now into her second semi-final of the season and will face Elise Mertens, who defeated Moyuka Uchijima 6-0 3-6 6-4 in the final match of the day.

Second and third seeds Veronika Kudermetova and Alize Cornet will meet in the other semi after beating Diane Parry and Tamara Zidansek respectively in straight sets.

At the Ostrava Open, meanwhile, tournament favourite Iga Swiatek reached her 10th semi-final of the year with a 6-4 6-4 victory over qualifier Caty McNally.

Swiatek needed nearly two hours to seal her 59th victory of the season – just one short of tying Caroline Wozniacki, the most recent female to hit 60 wins in a calendar year (2017).

She will now face Ekaterina Alexandrova, who proved too strong for Tereza Martincova in a 6-1 4-6 6-1 victory.

Another grand slam winner in Barbora Krejcikova earlier beat Alycia Parks 7-6 (9-7) 6-3 on home soil to maintain her positive form, a week after triumphing at the Tallinn Open.

Awaiting her in the semi-finals is Elena Rybakina following the reigning Wimbledon champion's 7-6 (7-5) 6-4 victory against Petra Kvitova.

Erik ten Hag was justified in criticising his Manchester United players on the back of last week's heavy Premier League loss to Manchester City, full-back Diogo Dalot has said.

United's four-match winning league run was ended in emphatic style by rivals City, who led 4-0 at half-time and 6-1 in the second half en route to an eventual 6-3 victory.

It marked the fourth time United had conceded six goals in a Premier League match and leaves them sixth in the table after seven matches of the 2022-23 campaign.

Ten Hag admitted after the match his side produced an "unacceptable" display, one in which they were "undisciplined", "lacked belief" and "made wrong decisions".

And Dalot, who played the full 90 minutes at the Etihad Stadium, accepts he and his team-mates can have no complaints regarding their manager's choice words.

"[Ten Hag's comments] did not hurt. I think this should be the standard of this club," he told reporters. "If you play for Man United you believe every single game. 

"You have to have confidence as well, but you have to take the responsibility that you're playing for the biggest club in the world. 

"This has to be normal for us but in a good way – not be overwhelmed but take it as a responsibility and this has to be the standard for every player."

Dalot retained his place at right-back for Thursday's Europa League group trip to Omonia Nicosia as United responded to the City defeat with a 3-2 comeback win.

It was not a vintage performance from United, with Karim Ansarifard giving the hosts a shock half-time lead, but Dalot says picking up all three points is all that matters.

"After a defeat like City it is always tough, but it is time to take responsibility and especially improve in some respects, which we should for the rest of the season," he said. 

"We had a lot of challenges [against Omonia] and we needed a response. The three points is what we came for and we are happy with that.

"Overall we could have controlled the game much more than we did, especially in the last minutes and also in the minutes after we conceded."

Marcus Rashford was introduced at the midway stage against Omonia and scored twice for United, either side of assisting fellow substitute Anthony Martial.

That made Rashford the first United substitute to both score and assist in a Europa League match, with this their 47th game in the competition.

"The substitutes made a really good impact, which is amazing for us as a team. I'm really happy with that," Dalot said. "They deserve it as well. 

"It shows every player wants to play, to show they have a role in this team. Overall, there are some really positive things to take but also some things that need to get better."

United return to league action on Sunday with a trip to Everton, against whom the Red Devils have won just one of their past seven league matches.

Miralem Pjanic has hit out at former Barcelona coach Ronald Koeman, claiming training sessions lacked intensity, tactics and ideas during the Dutchman's spell at Camp Nou.

Pjanic made 19 league appearances for Barcelona in the 2020-21 season after joining from Juventus, spending the last campaign on loan at Besiktas before joining Emirati outfit Sharjah last month.

The Bosnia and Herzegovina international has been critical of Koeman in the past, accusing the Dutchman of "disrespecting" him following his move to Turkey in September 2021.

Speaking to Cadena Ser on Friday, Pjanic attacked Koeman's methods once more, saying: "I was very surprised in training with Koeman.

"There was no intensity, no tactics, no ideas. We did not prepare for the games."

Pjanic spent his most recent pre-season at Barcelona under Koeman's successor Xavi, and was far more enthusiastic in his assessment of the current Blaugrana coach.

"Preparation and training was good under Xavi, similar to what I was used to at Juventus, for example, where we won everything," Pjanic added.

"Now the sessions at Barca have a lot of intensity. Xavi and his staff were very clear with us at the start of the season. They told us this year we would have to run and go 2000 miles per hour.

"Every day is like a game in training at Barcelona now, because there is so much quality in the squad and a lot of intensity."

Xavi has led Barca to an unbeaten start to the season in LaLiga, having overseen a second-placed finish after taking over from Koeman midway through last season. 

Stefano Pioli has called for Milan to respond to Wednesday's demoralising defeat at Chelsea when they host Juventus in a huge Serie A clash on Saturday.

Goals from Wesley Fofana, Pierre-Emerick Aubameyang and Reece James condemned Milan to their heaviest ever Champions League group-stage loss last time out, ensuring the Rossoneri remain third in Group E.

Milan have fared better on the domestic front, however, and sit four points clear of the under-fire Bianconeri in the early-season Serie A table.

Speaking at Friday's pre-match news conference, Pioli called for Milan to set their chastening defeat at Stamford Bridge aside as he demanded defensive improvements.  

"We put the game in London behind us straight away and we'll revisit it from Sunday onwards," Pioli said. "The players are eager to react. 

"This doesn't necessarily mean we'll win because the opponents exist too, but we won't be lacking in desire, motivation and determination.

"We've conceded a few too many goals. We can do better, and Chelsea did well to make the most of our mistakes the other night. 

"When there are simple situations, a team of our quality needs to be more attentive. We're a bit more of an attacking side than last year, but I don't think that it can be put down to this.

"Often, we have the numerical superiority, and we can interpret certain situations better."

Milan's last home outing saw them lose to Serie A leaders Napoli, ending a six-match winning streak at San Siro in the competition. The Rossoneri have never lost successive home league games under Pioli.

Meanwhile, Pioli has defended young forward Charles De Ketelaere, who has yet to score since joining from Club Brugge, comparing his early struggles to those of Rafael Leao and Sandro Tonali.

"He's on the right path, and I'm happy with what he's doing. I remember Rafa three years ago and Tonali in his first year," Pioli said.

"Many were quick to criticise them and question their qualities. Charles is talented and needs time to adapt and learn about certain situations, but he's on the right path."

Although Juventus have made an underwhelming start to the new campaign, they have lost just four Serie A games in 2022, and Pioli expects a stern test.

"During a season, there are two or three games that carry more weight, and going up against Juventus is of particular importance for many reasons," Pioli said.

"We're all responsible for the performance in London, and we're determined to show that we're a different team compared to the one that showed up on Wednesday."

It is a long time since the winners of a Klassiker may not be sitting pretty at the top of the Bundesliga at the end of the game.

But even a ninth successive victory for Bayern Munich over Borussia Dortmund at Signal Iduna Park on Saturday may not be enough for the champions to be at the summit.

Bayern head into the first showdown with Dortmund this season in third place, level on points with Edin Terzic's fourth-place side as Union Berlin surprisingly lead the way ahead of Freiburg after eight matches.

It is the first time in 13 years that neither side have been in the top two when this fixture has kicked off.

Dortmund have already suffered three Bundesliga defeats this season, but they come into the game buoyed by a 4-1 Champions League victory at Sevilla.

Bayern hammered Viktoria Plzen in midweek after a 4-0 rout of Bayer Leverkusen, so there could be goals aplenty this weekend.

Stats Perform previews the 132st showdown between the two rivals in all competitions in the Bundesliga era by picking out some standout Opta data.

Dortmund desperate to end dismal Klassiker run

The last time Dortmund got the better of Bayern was back in August 2019, when they 2-0 winners in the German Super Cup.

Their two goalscorers in that game are no longer at the club, with Jadon Sancho at Manchester United and Paco Alcacer with Sharjah.

Dortmund have not beaten Bayern in the Bundesliga since winning a classic 3-2 in November 2018, Marco Reus – who is missing this weekend due to an ankle injury – claiming a double.

Only against Hamburg between 1982 and 1985 have Dortmund lost eight competitive games in a row, so another defeat this weekend would set an unwanted record.

Hummels could make timely return

Mats Hummels has missed the two games since the international break due to illness, but could return against his former club.

Nine of the 10 goals Dortmund have conceded in the Bundesliga this season have been when Hummels was not on the pitch.

They have shipped only goal in 512 minutes while the vastly experienced centre-back has been on the field, but let in one every 23 minutes without him.

Terzic said ahead of the match: "We would be very happy if he were an option. It's a case of seeing how he feels and how his body reacts to the workload."

Sane and Musiala firing for free-scoring Bayern

Leroy Sane and Jamal Musiala have made great starts to the campaign for Julian Nagelsmann's side.

Sane endured a difficult start to life at Bayern after his move from Manchester City, but the winger has scored nine goals this season – four of those coming in the Champions League.

Only Gerd Muller has scored more than Musiala's five goals in eight matches at the start of a Bundesliga season as a teenager, the Bayern and Germany legend striking seven times at the start of the 1965-66 campaign.

Falling behind may not be a problem for free-scoring champions

The importance of starting strongly is stressed so often, but Bayern may not be too concerned if they go behind.

That is because Dortmund are the only team this Bundesliga campaign to lose twice after leading in games (3-2 v Werder Bremen and 3-2 at Cologne). 

Not that Bayern have been slow to get going, as they have scored 16 goals in the first half of Bundesliga games this season, with no other team scoring more than nine.

Garett Bolles has added to the Denver Broncos' offensive injury woes, suffering a broken leg in the 12-9 overtime defeat to the Indianapolis Colts.

The sixth-year left tackle was forced off with just under four minutes remaining of the fourth quarter on Thursday and was seen on crutches after the game.

Initial tests revealed a broken leg, but the team were awaiting further evaluation on Friday and it was then confirmed by head coach Nathaniel Hackett that he would be out for the remainder of the season.

"Garett Bolles will need surgery. He'll be out for the season." he said.

The Broncos' offense had already lost starting running back Javonte Williams to a season-ending knee injury in a Week 4 defeat to the Las Vegas Raiders, with the injuries coming amid on-field woes for the side.

Cornerback Ronald Darby has also been ruled out for the season after suffering an ACL injury and Hackett confirmed he is set for surgery.

Defeat to the Colts left the Broncos 2-3 for the season and are they yet to find their feet under Russell Wilson, following his seismic trade from the Seattle Seahawks.

The Broncos have plenty of time to improve before they take to the field in Week 6 against division rivals the Los Angeles Chargers, the game coming on Monday October 18.

Daniel Jones is expected to be the starting quarterback for the New York Giants against the Green Bay Packers, having recovered from injury.

The fourth-year QB suffered an ankle injury in the win against the Chicago Bears in Week 4 and was briefly taken out of the game, though he made his return to training on Friday.

Jones did not receive an injury status in London on Friday, leaving him set to lead the offense at Tottenham Hotspur Stadium on Sunday.

"Early in the week I started feeling better pretty quickly and realised that I was recovering quickly," he said after practice.

While Jones should be passed fit, the Giants' offensive options have been ravaged by injuries, particularly in the wide receiver area with Wan'Dale Robinson (knee), Kadarius Toney (hamstring) and Kenny Golladay (knee) all unavailable.

Despite the Giants' aerial presence taking a hit, Jones remains optimistic, saying: "We've had guys step up throughout the year."

New York are likely to rely heavily on their rushing game again, where Jones and Saquon Barkley have offered a dual threat – the latter standing as the NFL's rushing leader in 2022.

Jones is similarly effective on the ground, having at least six rush attempts in all four contests so far this season and accumulating 193 rushing yards, plus two touchdowns, with Barkley praising the character of his QB.

"He's a gritty guy, he's a tough guy. It does speak volumes when your quarterback has that mindset." he said.

The Giants stand 3-1 heading into the matchup against the Packers, tied with the Dallas Cowboys and behind the Philadelphia Eagles (4-0) in the competitive NFC East.

The Atlanta Falcons will be without second-year tight end Kyle Pitts when they play the Tampa Bay Buccaneers for the NFC South lead on Sunday.  

The Falcons ruled Pitts out with a hamstring injury after he was held out of practice all week.  

Parker Hesse and Anthony Firkser could see more snaps at tight end, but neither option provides the vertical threat of Pitts, who was drafted fourth overall out of Florida in 2021.  

Pitts' absence is another blow for an Atlanta offense that is already missing starting running back Cordarrelle Patterson, who is out at least four games after undergoing a minor knee procedure.  

Pitts' role in the offense so far this season has been a point of contention for some Falcons fans. The 6ft 6in tight end has just 10 catches for 150 yards through four games, although he has been targeted 22 times.  

The Falcons dropped the first two games of the season but bounced back by beating the Seattle Seahawks and Cleveland Browns the past two weeks. The Buccaneers are also 2-2, coming off losses to the Green Bay Packers and Kansas City Chiefs.  

There is "much more to come" from Jude Bellingham, according to Borussia Dortmund head coach Edin Terzic.

Bellingham captained the Bundesliga side during Wednesday's 4-1 win at Sevilla, where he became just the second teenager to score in the first three games of a Champions League campaign.

The only other player to achieve that feat is his former Dortmund team-mate Erling Haaland, who did so with Salzburg in the 2019-20 season.

Bellingham's tally of three Champions League goals this season is already a joint-high among English teenagers for a single campaign, along with Manchester United's Wayne Rooney, back in 2004-05.

The 19-year-old England international has been in good form for club and country, and Terzic believes he can get even better.

"[Bellingham] has been playing very consistently, getting more control and balance in his game," he said at a press conference ahead of Dortmund's Der Klassiker clash with Bayern Munich.

"We are very happy with the way he presents himself here every day. But this is not the end, there is much more to come."

Dortmund and Bayern head into Saturday's contest level on points in the Bundesliga, both two points behind surprise leaders Union Berlin and second-placed Freiburg.

Terzic is hopeful his team can produce a similar performance to the one in Seville, rather than their last league outing, where they lost 3-2 at Koln.

"We will not only need a good and disciplined tactical performance; we will need courage too," he said. "Courage to keep the ball, courage in one-on-ones and to get shots away.

"Not only against Bayern, but especially against Bayern."

The 39-year-old confirmed Marco Reus will not return for the game, having already been out with an ankle injury before illness halted his rehabilitation this week.

However, Mats Hummels could be back after his own illness, with a hopeful Terzic saying: "We would be very happy if he were an option. It's a case of seeing how he feels and how his body reacts to the workload." 

Novak Djokovic set up a semi-final meeting with Daniil Medvedev at the Astana Open on Friday, cruising past Karen Khachanov in the last eight.

Djokovic complemented a fine display of serving by converting three of his five break points in a 6-4 6-3 victory, recording his seventh consecutive win following his absence from the US Open.

The 21-time grand slam champion has now reached six semi-finals this year, but saw room for improvement in his performance after beating the world number 18.

"I didn't play as well from the baseline as I did in the first two matches, but still it was enough," Djokovic said. "I managed to produce some good tennis when it was most needed in both sets."

Looking ahead to his final-four match, the Serb added: "I always expect highs from myself. Hopefully I can elevate still the level of my game for tomorrow, because it's going to be needed." 

Djokovic will face an 11th tour-level meeting with Medvedev in the next round after his fellow former world number one recorded a dominant 6-1 6-1 win over Roberto Bautista Agut.

On the other side of the draw, third seed Stefanos Tsitsipas beat Hubert Hurkacz 7-6 (10-8) 6-3, and will now face Andrey Rublev after he eased to a 6-1 6-2 win over Adrian Mannarino.

At the Japan Open, a knee injury forced Wimbledon runner-up Nick Kyrgios to withdraw from his meeting with Taylor Fritz, with the American set to take on Denis Shapovalov in the semi-finals.

Seventh seed Shapovalov saw off Borna Coric 6-4 6-3 to reach the final four, while fourth seed Frances Tiafoe advanced with a 6-0 6-4 win against Miomir Kecmanovic.

South Korea's Kwon Soon-woo claimed the final place in the semi-finals in Tokyo, beating Spain's Pedro Martinez 6-3 6-0