Sprinter Justin Gatlin ran into a new row on Tuesday when he flew home on the eve of the Beijing World Challenge, claiming organisers told him they did not want him competing.

Organisers of the Beijing World Challenge have denied that they kicked out Justin Gatlin from their meeting and said they were 'perplexed' by the controversial sprinter's claim.

Usain Bolt has rubbished reports that he is afraid to face Justin Gatlin. Bolt has had an injury-ravaged season and the pair are yet to meet in 2015 but Bolt is gunning for Gatlin at World Championships

MARTHA KELNER: Justin Gatlin can produce a nightmare scenario for advocates of clean sport by breaking Usain Bolt’s 100metres world record this summer, according to ex-sprinter John Regis.

The credibility of Alberto Salazar’s defence against doping allegations has been further undermined by an interview he gave about a controversial incident involving Justin Gatlin in 2006.

Justin Gatlin could win world championships and go undefeated for a second consecutive season but he would still not be ineligible for the sport's athlete of the year award.

MATT LAWTON: Seb Coe has said he will feel ‘queasy’ should Justin Gatlin, or any other convicted drugs cheat, win gold at the World Athletics Championships in Beijing.

Usain Bolt turns 29 on Friday. There might be a modest slice of cake and a rendition of Happy Birthday from his Jamaican team-mates but otherwise the significance of the day will be ignored.

OLIVER HOLT: If Justin Gatlin wins, it will be a terrible indictment of a sport. If Usain Bolt wins, it will merely reinforce the idea that he is all that stands between athletics and oblivion.

American sprinter Justin Gatlin will refuse to speak to British media and the BBC in the future following 'hurtful attacks' and 'biased views' in reports having won silver in the 100m World Championship final.

Justin Gatlin hopes the public will see him as a 'human being' rather than a drugs cheat after the World Championships. Gatlin finished second in the 100m and 200m in Beijing.

USA's Justin Gatlin, 34, hopes to become the fastest man in the world, beating out rival sprinter Jamaican Usain Bolt. The New Yorker has been banned from the Olympics twice for doping

Bolt claimed all the headlines as the star of a generation took his final bow in an emotional night in the English capital. And his sporting contemporaries paid homage to his career.

Lord Coe has admitted that athletics is losing the fight to ban drugs cheats for life after Justin Gatlin's 100 metres World Championship victory over Usain Bolt at the London Stadium.

The 22-year-old Brit stormed through on the line to record an impressive season's best of 10.04sec in driving rain, edging out the Chinese pair of Su Bingtian and Xie Zhenye.

Bayern Munich have sealed a contract extension for Hansi Flick that will see the head coach remain at the club until 2023.

Chelsea have reportedly made the first move in the race to sign Philippe Coutinho this summer. The attacking midfielder joined Barcelona from Liverpool in a deal worth £145m two years ago.

29-year-old winger Costa featured under Pep Guardiola at Bayern Munich during his spell in Bavaria, but has largely fallen out of favour in Turin this season.

A new contract for Manuel Neuer is no closer. Amid interest from Chelsea and with the clock ticking on his current deal, Neuer and his agent Frank Kroth are digging their heels in during talks with Bayern.

'Outrageous' transfer fees will become a thing of the past after the coronavirus pandemic, Bayern Munich president Herbert Hainer believes.

Boateng's relationship with Bayern has soured after he was fined by the club for breaking coronavirus guidelines regarding essential travel, while he is about to enter the last 12 months of his contract.

Muller has been at the Bundesliga giants since 2008 and has put pen to paper on a new deal until June 2023. The 30-year-old crucially kept his social distance for some very unusual photos.

The Bundesliga giants have already started looking at transfer plans ahead of the summer window and both the RB Leipzig striker and Manchester City winger are firmly on their radar.

Manuel Neuer is 'unlikely' to be at Bayern Munich next season because the 34-year-old goalkeeper wants a five year contract extension.

KIT HOLDEN: For days on end, the manicured lawns at Bayern Munich's training ground lay empty. Not a ball in sight, not a Qatar Airways-branded tracksuit to be seen.

The former Liverpool midfielder has failed to make much of an impact at the Nou Camp since his £145m transfer from Liverpool back in 2018. He is currently out on loan at Bayern Munich.

Bayern Munich president Herbert Hainer says Thomas Muller is as symbolic to the city as the annual and world-celebrated Oktoberfest.

The goalkeeper's current deal is set to expire in 2021 but he and the club have not seen eye to eye over discussions on an extension.

After failing to break into Zinedine Zidane's starting XI this season, Rodriguez looks set to have two options this summer in the Premier League, with Manchester United and Everton interested.

Bayern Munich's pursuit of Leroy Sane has been dealt a serious blow due to the coronavirus crisis, according to reports. The Bundesliga champions are long-term admirers of the Manchester City winger.

KIT HOLDEN: The love affair between Bayern Munich and Thomas Muller is one of modern football's immovable certainties. A local boy with a goofy grin, Muller is the apple of Bayern's eye.

The former Chelsea and Bayern Munich star opened up on the couple's health fright, and highlighted that Bernadien had struggled to recover from the virus over a sustained period.

Philippe Coutinho's agent has revealed that the midfielder would relish returning to the Premier League at some stage.

Kai Havertz is one of Europe's most exciting young players and is sought-after by clubs across Europe including Premier League giants Liverpool and Manchester United.

Michael Rummenigge, former Bayern Munich striker, believes Sane's long-term injury and the financial impact of the coronavirus could see City lower the price or cut him off as a free transfer.

UEFA president said he would consider finishing the European competitions behind closed doors but will accept they might have to be cancelled if they were unable to resume by September.

Sagnol, who was working as a scout at Bayern Munich as Varane rose through the ranks at Lens, claimed he got a tip-off about the 18-year-old defender from a friend.

Barcelona are weighing-up a move for Bayern Munich ace Kingsley Coman in the summer, seeing the winger as a backup option for Neymar. The Spanish side will also prioritise a move for Lautaro Martinez.

The Moroccan international has developed into one of the most coveted full-backs in Europe after an impressive two-year loan stint at Borussia Dortmund from Real Madrid.

Phil Thompson believes it is not too late for Philippe Coutinho to reignite his career by rejoining Liverpool in the summer, despite failing to achieve success at Barcelona.

The German goalkeeper's contract at the Allianz Arena expires next summer and Neuer is looking to sign a new deal with the club he joined back in 2011 from Schalke.

Bayern Munich have been given a major boost in their pursuit of Leroy Sane following comments from his new agent that they have the 'prerequisites to win the Champions League'.

Mamadou Sakho has revealed that he turned down Barcelona, Bayern Munich and Arsenal to join Liverpool. The defender joined Liverpool from Paris Saint-Germain in 2013 for £18million.

Everton are reportedlyinterested in signing Torino's Andrea Belotti this summer, with Manchester United and Napoli also pursuing the striker. 

Bayern have a key relationship with Audi, and the German manufacturers have provided every squad member with a new car since 2002, the year they became a shareholder of the club.

Every now and again - but not often - a player will make the brave decision to move from his current club to their biggest rivals. Here, Sportsmail takes a look at ten transfers between rival clubs.

RB Leipzig striker Timo Werner looks to be edging closer to a move to the Premier League with reports claiming the Chelsea and Liverpool target has started taking English lessons.

Coutinho's displays at Bayern have not been enough to convince the German giants to make his loan move permanent and they are now unlikely to trigger an optional clause to sign the him for £70m.

Frank Lampard inherited the £72million Kepa upon his arrival at Chelsea last summer, but a series of high-profile errors have seen the Spanish stopper come under serious scrutiny.

Everton have emerged as a front-runner in the race to bring Philippe Coutinho back to England, capitalising on strong links between Merseyside and Catalonia forged in recent transfer windows.