With Pierre-Emerick Aubameyang's move to Barcelona belatedly confirmed on Tuesday, transfer business in Europe's top five leagues is now over until the end of the season.

Not every leading club traded in January – Real Madrid, Bayern Munich, Chelsea, Paris Saint-Germain and, not for want of trying, Milan were all quiet – but there were plenty of deals done that may yet alter the landscape of this campaign.

So, who boosted their title bid or European push? And whose hopes took a hit after failing to make the most of the past month?

Stats Perform picks out the winners and losers of the transfer window, starting with the biggest move of all...

WINNERS

Juventus

This has been another tough season for Juve, who enter February on the outside looking in at Serie A's top-four race. But they could have done little more in the window to address their issues, plugging the hole left in their attack by first Cristiano Ronaldo's departure and then Federico Chiesa's injury by bringing in Dusan Vlahovic, Serie A's leading marksman, for €75million – the biggest buy of 2022 so far.

There were departures, but Dejan Kulusevski has hardly been a key man and Rodrigo Bentancur's exit was offset by the bargain capture of Denis Zakaria, while the Bianconeri will no doubt be grateful to get at least part of Aaron Ramsey's salary off the books.

Barcelona

Another struggling European Super League advocate, Barcelona's finances are tighter than Juve's, but they got creative to bolster a squad still coming to terms with Lionel Messi's absence. Ferran Torres appeared to be the replacement for the retired Sergio Aguero, only for Aubameyang to also arrive right at the last, surely bringing to an end Luuk de Jong's short, unsuccessful stint as the Blaugrana's leading man.

Dani Alves and Adama Traore each returned to Camp Nou, too, as Philippe Coutinho and a chunk of his wages headed out on loan.

Aston Villa

Coutinho may have been unwanted at Barca, but his signing represented a major coup for former team-mate Steven Gerrard at Villa. A goal on his debut against Manchester United suggested the one-time Liverpool superstar may yet have what it takes to shine in the Premier League.

Lucas Digne's arrival at left-back significantly upgraded that position, meanwhile, and ensures Villa are looking up the table, not down. Although this feels a little like a lost season – 12 points from the top four, 11 from the bottom three – two eye-catching deals should at least give fans plenty to shout about.

Sevilla

If Villa lack any obvious short-term objective, the same is not true of Sevilla. Julen Lopetegui's men are second in LaLiga, firmly in a title fight with Madrid, and targeting a Europa League final at their home stadium. Persistent talk of a departure for defender Diego Carlos, targeted by Newcastle United, therefore represented a concern, but director of football Monchi stood firm – and then landed a stunning signing, too.

Anthony Martial blew hot and cold at Manchester United but should be the main man in Spain, where he offers far more than Sevilla's other striking options. With his goals at one end and Diego Carlos' enduring partnership with Jules Kounde at the other, this could yet be a sensational season.

Liverpool

Jurgen Klopp's Liverpool could easily have let January pass without doing business, having no real need to improve their side in the short term. But then Tottenham agreed a deal with Porto for Luis Diaz, and the Reds sensed an opportunity, swooping in to secure his £33.3m signing. Liverpool have the luxury of not needing Diaz to hit the ground running, with Sadio Mane and Mohamed Salah soon returning from international duty, yet he appears an ideal long-term replacement in one of the attacking positions.

LOSERS

Arsenal

Mikel Arteta must fear Arsenal's momentum has been lost. The Gunners headed into January on a five-match winning run in all competitions, only to fail to add another victory in five games before February, crashing out of both domestic cups and falling out of the top four. New signings could have righted the ship, yet Arsenal ended the month with Colorado Rapids defender Auston Trusty – loaned back to MLS – as their only done deal.

A move for Vlahovic was dismissed by the player and trumped by Juve, while long-standing interest in Bruno Guimaraes did not materialise into a transfer, as the Brazil midfielder instead joined Newcastle. Arteta trimmed the squad in securing temporary and permanent departures for Aubameyang, Calum Chambers, Sead Kolasinac, Pablo Mari, Ainsley Maitland-Niles and Folarin Balogun, but Arsenal did not raise a fee for any of them.

West Ham

Flush with cash and without the serious threat of losing star performer Declan Rice, January brought opportunity for West Ham, joining modest spenders Arsenal, United and Tottenham in a top-four tussle. However, despite reports of increasingly wild big-money bids, the Hammers did not make a single recruit.

Interest in Leeds United pair Kalvin Phillips and Raphinha seemed optimistic at best, but failing to land either was not as costly as the inability to provide competition up front. Although Hugo Ekitike and Darwin Nunez were both discussed, the club remain a Michail Antonio injury away from a crisis.

Argentina head coach Lionel Scaloni insists there is still plenty to play for in World Cup qualifying with spots in their squad for Qatar 2022 up for grabs "except for one".

The already-qualified Albiceleste got past Colombia 1-0 in Cordoba on Tuesday thanks to Lautaro Martinez's 29th-minute strike to clinch another three points.

Scaloni did not call up Lionel Messi for Argentina's two qualifiers over the past week following his recent COVID-19 case while Rodrigo De Paul and Leandro Paredes were also absent, with Emiliano Buendia making his debut off the bench against Colombia.

"We had the possibility of calling up players but we preferred not to expose footballers who aren’t playing right now," Scaloni told reporters after the game.

"Not only did we miss players but we had to improvise in putting players in positions. We went forward with these call ups who came to contribute and in the end, it went well.

“Here, you can’t relax. Everyone is part of this process but on the pitch, you have to perform. The players that were here today took advantage of their opportunity.

“There’s still a lot left until the World Cup. No one has their spot secured, except for one, as I have always said.”

The victory over Colombia means Scaloni becomes the first Argentine coach to beat all nine South American national teams.

The clean sheet meant Argentina have not conceded in their past five home qualifiers, while the win also extended Argentina's unbeaten run to 29 games.

"I don’t think that’s important, it’s how the team functions and how these players feel wearing the shirt," Scaloni said about their unbeaten streak.

Brazil turned on the style and piled on the goals as they continued their perfect home World Cup qualifying record with a comfortable 4-0 win over Paraguay in Belo Horizonte on Tuesday.

Leeds United forward Raphinha had a goal disallowed by the VAR early before netting the opener in the 28th minute, with new Aston Villa signing Coutinho adding a second on 62 minutes for his first international goal since 2020.

Brazil added two more in the dying minutes as Ajax forward Antony curled in the third, before Newcastle United addition Bruno Guimaraes laid off for Rodrygo to tap home.

The victory means Selecao, who have already clinched their spot at Qatar 2022, are unbeaten in 15 qualifiers and remain four points clear of rivals Argentina at the top of the CONCACAF standings.

Brazil have also won seven out of seven qualifiers on home soil, netting 18 goals and conceding only once, while Paraguay officially cannot qualify for Qatar 2022 due to the defeat.

Argentina has extended its unbeaten run to 29 games after Lautaro Martinez's 29th-minute strike earned them a 1-0 World Cup qualifying victory over Colombia in Cordoba.

Martinez netted his 19th international goal from Marcos Acuna's cross as already-qualified Argentina moved to 35 points from 15 qualifiers, with 13 wins from their past 15 games. 

La Albiceleste were missing talisman Lionel Messi but welcomed head coach Lionel Scaloni back to the touchline after COVID-19 and he would have been pleased with his side who were largely in control throughout.

Colombia, whose stuttering qualifying campaign is in strife after seven games without a win nor a goal, struggled to retain possession and mustered few genuine chances on goal against a stubborn Argentine defence, who have kept five clean sheets from their past five home qualifiers.

Messi's Paris Saint-Germain teammate Angel Di Maria, who was dangerous throughout, curled a 16th-minute effort just wide of Colombia goalkeeper Camilo Vargas' goal.

In the 29th minute, Vargas could not prevent Argentina going ahead when Inter forward Martinez trapped Acuna's cross inside the box and lashed home, squirming under the goalkeeper's grasp.

Out of nowhere, Colombia almost levelled on the stroke of half-time, with Luis Diaz setting up Miguel Borja who was denied by Emiliano Martinez. The new Liverpool signing's follow-up effort was cleared off the line by German Pezzella.

Acuna forced a good save from Vargas early in the second half, while the Colombian goalkeeper made a better block with his outstretched right arm to deny Di Maria from range in the 65th minute.

Giovani Lo Celso, who left Tottenham for Villarreal on loan on deadline day, flashed a chance over the bar as Argentina survived a late scare from Johan Mojico's shot which almost caused a Nicolas Gonzalez own goal, although that would not have counted due to offside.

Argentina should have grabbed a second in the 94th minute when Gonzalez broke in behind but opted to square for Paulo Dybala allowing the Colombian defence to clear.

Dusan Vlahovic got his move to Juventus because he and his "dishonest" agents wanted to "ruin" Fiorentina, according to the club's president Rocco Commisso. 

Serie A champions Juve shelled out an initial €70million to sign Vlahovic from Fiorentina last Thursday, beating off competition from Premier League sides Arsenal, Manchester City and Newcastle United. 

The Serbia international only had 18 months left on his contract with the Viola, who were keen to avoid losing their talisman for nothing at the end of next season. 

Commisso believed Vlahovic had long had an agreement in place and was ready to run down his contract if a move to Juve could not be agreed. 

“In November I came back to try to finalise the contract, but his agents were dishonest and liars," Commisso told the club's official website. 

"We had a good meeting, I expected a positive response for the morning after to sign the contract. Instead of what he had decided, he asked for double. His agents then asked for more. They also wanted a 10 per cent cut of the transfer fee and exclusive rights to negotiate his next move. 

"It was clear to everyone he already had a deal with someone. He said no to every offer. We went to England to deal with Premier League teams and returned with various proposals, but he and his agents always said no. 

"In my opinion, the goal was to run his contract down and ruin Fiorentina. The agents thought he could go for nothing and make themselves rich." 

Vlahovic has scored 17 goals in 21 Serie A outings this season, putting him level with Ciro Immobile at the top of the scoring charts. 

Pierre-Emerick Aubameyang has been hurt by the manner of his Arsenal exit but insisted he was always "100 per cent focused and committed to the club". 

Arsenal announced on Tuesday that Aubameyang had left Emirates Stadium by mutual agreement. He is expected to join Barcelona on a free transfer, though that move has yet to be confirmed. 

The 32-year-old last played for the club on December 6, having been stripped of the captaincy and frozen out by head coach Mikel Arteta due to a disciplinary breach thought to relate to him returning late from a trip abroad. 

After Arsenal confirmed his departure, Aubameyang posted on Instagram: "To the Arsenal fans, thank you for making London home for myself and my family for the past four years. We went through ups and downs together and your support meant everything to me. 

"Having the chance to win trophies and the honour of being the captain of this club is something I will forever keep in my heart. 

"I have always been 100 per cent focused and committed on doing everything I can for this club which is why leaving without a real goodbye hurts – but that is football. 

"I'm sad I did not get the chance to help my team-mates in the last few weeks, but I have nothing but respect for this club and truly wish all my guys and the fans all the best and many successful years in the future! Love, Auba." 

Aubameyang scored 92 goals in 162 appearances in all competitions for Arsenal after joining from Borussia Dortmund in January 2018. 

He won the Premier League Golden Boot in 2018-19, alongside Mohamed Salah and Sadio Mane, and scored a double as Arsenal overcame Chelsea in the following season's FA Cup final.

Heavyweight boxing champion Oleksandr Usyk trained with Ukrainian second-tier side Polissya on Tuesday ahead of making his football debut. 

WBA, WBO and IBF title-holder Usyk swapped his gloves for some boots as he took part in a session during Polissya's mid-season training camp in the Turkish city of Antalya. 

The 35-year-old this week announced he will take part in a friendly against Veres Rivne on Thursday and uploaded footage of himself preparing in the changing room and taking part in some drills on Instagram. 

Polissya also published clips of Usyk taking part in a training game. 

After a short experiment on the pitch, Usyk will likely head back to the ring and prepare for a rematch against Anthony Joshua after dethroning the Briton by unanimous decision last September. 

It had been reported that Joshua was considering accepting a fee to step aside and let Usyk take on WBC champion Tyson Fury in a blockbuster unification bout, but those talks are now believed to have broken down. 

Sadio Mane will be hoping to fire Senegal back into the Africa Cup of Nations final when they take on Burkina Faso in the semi-finals on Wednesday. 

Senegal's hopes of winning a first AFCON title were dashed by Algeria back in 2019 but they are looking to become the first team since Egypt in 2010 to reach successive finals – and this time they will be desperate to go one better and lift the trophy.

History appears to be in their favour too. That loss to Algeria is the Lions of Teranga's only defeat in their past six knockout games in the competition, and they have only conceded two goals in that span.  

Furthermore, they are unbeaten in their two previous AFCON meetings with Burkina Faso, though both of those came in the group stage. 

But Burkina Faso are no strangers to this stage of the competition. They have made the final four for the fourth time in their history and the third time in the past five editions – this despite not even qualifying for the 2019 tournament. 

Kamou Malo's team did well to upset Tunisia in the quarter-finals, though they will be without their goalscorer Dango Ouattara after his red card in the 82nd minute of their 1-0 victory. 

Malo said: "I think that at this level of competition, there are no limits. Don't worry, we all have the same goal, which is to win this trophy. 

"As for my desire to go all the way in this competition, yes, there is no doubt about that. We are ready to be extremely competitive to go to the end of this competition." 

Burkina Faso's hopes of pulling off another upset will rely heavily on keeping Mane at bay. 

The Liverpool star may have just two goals in Cameroon, but only Mohamed Salah (14), Sofiane Boufal (11) and Ibrahim Sangare (eight) have outdone his seven open-play key passes in the competition.

One to watch: Gustavo Sangare (Burkina Faso) 

With Ouattara absent due to suspension, Sangare will be expected to step up on the opposite wing. 

He has already been important for Burkina Faso, scoring the opening goal of the tournament in a 2-1 loss to hosts Cameroon in the group stage – no one in the squad has found the net on more than one occasion in the competition. 

But it is his ingenuity that the Stallions could use more than anything. Only Zakaria Sanogo and Blati Toure (four each) have created more chances from open play for Burkina Faso than Sangare's three, while the Quevilly winger has been involved in a team-high three goal-ending sequences. 

He has proven to be a real threat with the ball at his feet and could help thwart Senegal and send the underdogs into the showpiece. 

Pierre-Emerick Aubameyang has left Arsenal by mutual consent ahead of his expected move to Barcelona.

The Gunners confirmed on Tuesday that Aubameyang had been released from his contract, which was due to expire at the end of next season.

Arsenal's decision is expected to pave the way for the 32-year-old to sign an initial six-month deal with Barca.

A statement from the Gunners read in part: "Pierre-Emerick Aubameyang has left the club by mutual agreement.

"We wish Auba all the best for the next chapter in his career and thank him for his contribution to the club."

Aubameyang joined Arsenal in January 2018 and shared the Premier League Golden Boot with Mohamed Salah and Sadio Mane in his first full season in England.

He scored twice as the Gunners overcame Chelsea in the 2019-20 FA Cup final and found the back of the net 92 times in 162 appearances in all competitions for the club.

However, Aubameyang was stripped of the captaincy by Mikel Arteta in December for a disciplinary breach believed to relate to returning late from a trip abroad.

He was also the subject of an internal investigation by Arsenal after it was alleged he could have breached coronavirus restrictions to get a tattoo in February of last year. 

Arteta dropped Aubameyang from his squad after taking the armband off him, with the Gabon international's last appearance for the club coming in a 2-1 loss to Everton on December 6. 

Aubameyang scored four goals in his 14 Premier League appearances this season, averaging one every 259.8 mins – his worst in a campaign since arriving at Emirates Stadium. 

Pierre-Emerick Aubameyang has left Arsenal by mutual consent ahead of his expected move to Barcelona.

A brace from Abdullah Fawaz, including a late penalty, earned Oman a 2-2 draw with Australia, putting a dent in the Socceroos' hopes of an automatic qualifying spot for the 2022 World Cup.

While they are guaranteed at least a playoff spot in Group B of Asia's World Cup qualifiers, Australia now sit three points behind Japan and four adrift of leaders Saudi Arabia with two games to play.

Australia were denied the lead in the fifth minute after Trent Sainsbury's header from an Aaron Mooy free-kick was ruled out by an offside flag, but the visitors had a penalty just nine minutes later when Oman goalkeeper Faiyz Al Rusheidi brought down Martin Boyle, and Jamie Maclaren successfully placed his spot kick high to the keeper's left.

Oman levelled in sensational style early in the second half as Abdullah received a pass from the left by Munzer Al-Alawi before firing a fierce strike high into the top-left corner, giving Mat Ryan no chance.

Australia regained the lead with just over ten minutes to go when a cross from the left was headed down to substitute Mitchell Duke, who cushioned the ball back for Mooy to fire past Al Rusheidi.

However, more drama followed as substitute Muhsen Al Ghassani was felled by Fran Karacic in the box, and Abdullah sent Ryan the wrong way with his penalty to earn Oman a draw and dampen Australia's hopes of a top-two finish.

Everton new boy Dele Alli has issued a message of gratitude to former club Tottenham after making a deadline day move to Goodison Park – and made special mention of former Spurs boss Mauricio Pochettino.

Alli's seven-year spell at Tottenham came to an end on Monday, leaving for Merseyside in what is said to be an initial free transfer.

Everton will reportedly be obliged to pay £10million for the midfielder after he makes 20 appearances, with subsequent performance-based add-ons that may take the eventual figure as high as £40m.

The 25-year-old recorded 67 goals and 55 assists in 269 games for Spurs, having moved to White Hart Lane from MK Dons in 2015.

Alli took to social media on Tuesday to thank his former club, saying they will "always" be in his heart.

"It's the end of a chapter but not the book," he wrote. "Thank you for all the messages. I've had an incredible seven years at Tottenham and have made some lifelong friends that now feel like family! I want to wish my brothers all the best for the rest of the season and more. 

"To the fans I want to say thank you. We've had some incredible moments together that will stay with me for the rest of my life and I will never forget the amazing support you have given me. Playing for you was a dream come true and you will always be in my heart.

"I want to give a special mention to Mauricio [Pochettino] and his staff for their trust and guidance in the early part of my career at Spurs, which gave me the confidence and platform to show what I can do. 

"I love you all and wish you the best for the future!"

Barcelona have confirmed they will assist the Provincial Prosecutor's Office of Barcelona and the police department after finding certain irregularities during a forensic investigation into the club's financial situation under the previous board.

The Catalan giants' financial issues in recent years have been widely reported, which led to club legend Lionel Messi having to leave for Paris Saint-Germain last year after LaLiga denied his contract renewal due to the salary cap imposed on Barca as a result of financial mismanagement.

Barca president Joan Laporta – who returned to the club for a second spell after winning the election in March last year to replace the outgoing Josep Maria Bartomeu – commissioned a due diligence procedure from Deloitte, which revealed a due debt of €1.173billion and a loss of €481m.

Laporta was joined by the club's vice president Eduard Romeu and Jaume Campaner, a corporate lawyer contracted to work on the investigation, at a media conference on Tuesday to outline the findings of the investigation.

Laporta said "payments without cause, payments with a false cause or disproportionate payments were found" while Campaner explained that the findings showed "very serious criminal behaviour".

One of the more interesting revelations from Campaner included a company apparently being created to work on commissions with the club, saying: "We are talking about millionaire amounts. There are payments to intermediaries without justification, non-existence, or well above normal. Commissions of up to 33 per cent have been detected, while only up to five per cent is normal.

"There is a company that was born solely to work on commissions with Barcelona. Completely artificial accounting benefits were presented that are not the reality of the club."

Romeu explained that when he and Laporta arrived last year, they found that the wage bill was 40 per cent higher than those of rival clubs, and as such they have set about trying to drastically trim it where they can, including asking players to take pay cuts and moving on unwanted players.

"The salary bill is fundamental," Romeu said. "We were 40 per cent above our competitors and that was a completely unsustainable situation. To date, we have already saved €159m from the club's wage bill."

A statement on the club's website following the news conference explained the situation in further detail, confirming: "These sources and the conclusions made therefrom by independent analysts have compelled the FC Barcelona Board of Directors to deliver the said material and the supporting evidence to the Provincial Prosecutor's Office of Barcelona as the body that safeguards the principle of legality and which rules on the prosecution of allegedly criminal conduct, with the support of the police departments, whose duty it is to investigate matters involving potential conduct of a criminal nature.

"The allegations filed with the Public Prosecutor's Office are not addressed at any specific persons. They are limited to a description of certain circumstances and it is up to the investigators to determine who might be responsible.

"FC Barcelona is assisting the Provincial Prosecutor's Office of Barcelona and the police department with its enquiries in order to support any clarifications and provide any evidence that they might need in order to thoroughly investigate the circumstances.

"It is because of the social importance of FC Barcelona that the Board of Directors has initiated this exercise of responsibility from the conviction that the club's assets, which are the property of all of its members, must be respected and managed not only in an effective manner in economic and sporting terms, but also is good faith and in consideration of the institution and its members."

Dusan Vlahovic is "emotional and proud" to have signed for Juventus, declaring the move an "easy" decision despite rival interest and backlash from Fiorentina fans.

Vlahovic moved from Fiorentina to Juve for €75million in the biggest deal of the January transfer window.

The 17-goal striker – tied with Ciro Immobile at the top of Serie A's scoring charts – was said to have turned down approaches from Arsenal and Newcastle United before heading for Turin.

That was a call that frustrated Fiorentina supporters, who have grown used to seeing their top players poached by rivals Juve.

The Curva Fiesole group described Vlahovic as "another small man without b****, without honour and without respect" and "a coward" for joining the Bianconeri.

Presented as a Juve player on Tuesday, however, Vlahovic was delighted with his choice.

"I am emotional and proud to have signed for Juventus," he said. "I am ready to give my all for this glorious club to reach its objectives.

"The choice was easy. The Juventus DNA: the desire to fight, to never give up, to aim to be the best – all these elements are also part of my character. I fit in here.

"I want to the thank the president and everyone else who made this move possible."

Still, Vlahovic had a word for Fiorentina, adding: "I want to thank everyone at Fiorentina who helped me mature and make me the player I am today."

The 22-year-old was the most sought-after forward last month, but fellow superstars Kylian Mbappe and Erling Haaland are expected to be on the move later in the year.

As Vlahovic seemingly emerges as a challenger to those two as his generation's top talent, he said: "I am following my own path. How far I'll reach, I don't know, but I'll give my all to achieve as much as possible."

Barcelona president Joan Laporta believes Ousmane Dembele already has an agreement to join another club when his contract expires at the end of the season.

Speaking on Tuesday, Laporta gave details of the negotiations that took place to renew the winger's contract.

The 24-year-old was then told to find another club in the January transfer window after those talks broke down – he had been linked with a number of Premier League teams, as well as Paris Saint-Germain – but a move never materialised.

Barcelona director of football Mateu Alemany told Dembele last week he must leave "immediately", which prompted the player to issue an angry riposte on social media.

Speaking at a news conference where Barca were outlining the details of the forensic review into financial irregularities by the previous regime, Laporta was asked about Dembele's situation.

"Ousmane said that the renewal offer was very good, then it was an economic issue," he explained. "And when we told him that it was already good enough, the agent took a position in not saying anything.

"Dembele wanted to accept a renewal. Then they wanted more and the issue got stuck. His agent didn't say anything and that has consequences. We've done everything possible and he hasn't accepted."

Dembele has struggled since joining from Borussia Dortmund in 2017 for an initial €105million, and has suffered several injuries that have kept him from getting a sustained run in the team.

Laporta also revealed the player turned down an opportunity to sign for an unnamed English suitor and believes this was because he already has an agreement with another club for when his contract at the Camp Nou expires at the end of the current campaign.

"We are very surprised that he didn't accept the offer from the English club either, he prefers to stay here," Laporta said. "It's not good for him or for the club.

"What happened with Dembele is difficult to understand. He is now in the squad and Xavi must work on the present but also on the future.

"We think Dembele has an agreement with another club."

Barcelona signed three players in the January transfer window, registering the returning Dani Alves, along with Ferran Torres and the loan of Adama Traore, while it is also expected the club will announce Pierre-Emerick Aubameyang on a free transfer imminently.

Laporta confirmed: "Aubameyang's documents entered with one minute to go before midnight."