Next month’s World Championships men’s 100m final is in danger of rivalling the 1988 Olympic final in Seoul as the ‘Dirtiest Race in History’.

American sprinter Justin Gatlin continued his fine form by clocking 9.78 to win the 100 metres at the Herculis Diamond League meet on Friday.

MARTHA KELNER AT THE OLYMPIC STADIUM: Usain Bolt allayed any concerns over his fitness, twice running 100m in 9.87 seconds at the Sainsbury's Anniversary Games.

Usain Bolt celebrated his first serious 100metres win of the season by celebrating in London. Bolt was spotted at swanky west London nightclub Libertines following his 9.87 second win.

On Sunday night the best 100m sprinters in the world will settle down on to their blocks in the iconic Bird’s Nest Stadium in Beijing, the scene of much heroics in the 2008 Olympics.

MARTHA KELNER IN BEIJING: Usain Bolt goes head to head with the two-time drug cheat over 100m and 200m at the World Championships in Beijing this weekend.

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.

Usain Bolt managed to survive a stuttering start to move into the World Championships 100m final in Beijing, setting up an enticing showdown with Justin Gatlin, who stormed through in his heat.

As Usain Bolt fulfilled his final media duties inside the Bird’s Nest stadium after winning 100m gold, with cleaners tidying around him and, a fan draped draped in the Jamaican flag screamed: ‘Yes Usain Bolt!'

Usain Bolt and Justin Gatlin set up the sequel to their world championship sprint showdown on Wednesday, both winning their semifinal heats in the 200 metres.

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.

CHARLES SALE: Lord Coe’s unparalleled reputation as Britain’s leading sporting statesman is in danger of being tainted by his continued links with Nike.

Justin Gatlin is the 100m Diamond League champion after taking a closely-fought victory in Brussels at the final Diamond League meeting of the year.

JONATHAN MCEVOY: 20 years on from becoming the only man to claim an Olympic 200m and 400m double, Michael Johnson opens up on the problems facing his friend Lord Coe and British hopes in Rio.

The Jamaican was forced to settle for third in his final solo race at the London Stadium on Saturday after being beaten by the USA's Christian Coleman, who claimed silver, and Justin Gatlin, who won the gold.

Justin Gatlin was again cast as the pantomime villain by the crowd at the London Stadium on Sunday as he collected his 100m gold medal after beating Usain Bolt to re-gain his world title.

After finally earning his first Tour title on Sunday night, US PGA Championship winner Justin Thomas was quick to share the moment with his proud mum and dad, and then Tiger Woods.

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.

Jerome Boateng has been fined by Bundesliga giants Bayern Munich after crashing his Mercedes on the motorway while driving back from visiting his ill son.

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

PETE JENSON: Barcelona will need to raise funds this summer if they are to finance a bid for Neymar or Lautaro Martinez against a backdrop of massive losses because of the coronavirus shutdown.

Bayern Munich players will return to training on Monday for the first time since the Bundesliga campaign was suspended. The top flight has been on hold since March 13 due to the coronavirus pandemic.

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

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.

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.

Achraf Hakimi has developed into one of the most coveted full-backs in Europe after spending the last two seasons on loan at Borussia Dortmund from the Santiago Bernabeu side.

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.

Bayern Munich and Borussia Dortmund are both said to be interested in Antonio Rudiger. Rudiger has reportedly opened contract talks with Chelsea but has been linked with a move away.

The Frenchman has fallen down the pecking order this season under Hansi Flick, having started just seven games under the new manager at the Allianz Arena.

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.

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.

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.

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.

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'.

The league's chief Christian Seifert did suggest last week that the current plan is for games to return to all 36 grounds in the top two divisions by the start of May.

Philippe Coutinho (right) has spent the season at Bayern Munich after being frozen out of the Barca first-team, but the Chelsea target could be handed a surprise return by Quique Setien (left).

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. 

RB Leipzig are yet to speak to clubs about in-demand striker Timo Werner, with Liverpool and Bayern Munich reportedly interested in a summer move for the prolific goalscorer.

The goalkeeper claimed suggestions he wants a five-year contract 'make no sense' given that would take him to the age of 39.

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.

Bayern Munich starlet Alphonso Davies has signed a new contract with the club that is set to run until the summer of 2025. Davies wore a face mask as he posed for photos to celebrate signing the deal.

Manuel Neuer will sign a new deal with Bayern Munich despite his anger at leaked contract information, according to club CEO Karl-Heinz Rummenigge. 

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.