AHEAD OF THE GAME - MATT HUGHES: The ongoing battle for control of Sheffield United is hindering attempts to tie manager Chris Wilder and key player John Lundstram to new deals.

American drug cheat Justin Gatlin won the 100m in Brussels on Friday evening with a years best time of 9.77s, amid controversy that the twice-banned sprinter shouldn't even be allowed to compete.

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.

Justin Gatlin added the year's fastest 200m time to his resume at the Prefontaine Classic Diamond League meeting.  Gatlin equalled his lifetime best with his run of 19.68 seconds

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.

Usain Bolt blew away any fears about his fitness and fired a major warning to Justin Gatlin as he blasted to his fastest 100 metres of the year on his return to the Olympic Stadium on Friday night.

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.

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.

'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.

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.

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

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.

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.

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.

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.

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.

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.

Hasan Salihamidzic confirmed there had been no resolution to contract negotiations with Manuel Neuer, but confirmed the Germany international has been placated after his outburst last week.

KIT HOLDEN IN GERMANY: On Monday morning, the Bundesliga waited with bated breath for news out of Cologne. When it came, German football breathed a collective sigh of relief.

Ellison is holding a golfing fundraiser for Donald Trump's re-election campaign on February 19 at his Rancho Mirage estate, a move that has sparked outrage among his employees.

The 50-year-old Oscar winner wrote: 'Two sides of the aisle, one side of values'

Joe Biden, 77, was speaking at a campaign rally in Houston, Texas ahead of Super Tuesday voting today that will decide a third of the Democratic delegates on offer.

James Carville, who advised President Bill Clinton, told Bernie Sanders to stop 'lollgagging around' after the Vermont senator failed to carry key primary states on Super Tuesday.

Both Bernie Sanders and Joe Biden are canceling their planned campaign events tonight in Cleveland due to coronavirus concerns. And CNN canceled audience for Sunday debate.

PETE JENSON IN SPAIN: Jordi Cruyff's Monday morning column in Diario Sport was the perfect riposte to Michael Owen's tweet last week dismissing a Diego Simeone masterclass.

Jurgen Klopp has admitted it was difficult to prepare for Liverpool's second leg Champions League clash with Atletico Madrid as the coronavirus pandemic was taking hold of the Spanish capital.

Manchester United 'are growing increasingly confident they could sign Saul Niguez in a club record £135million deal' as they look to replace Paul Pogba.

Edinson Cavani has been linked with South American clubs such as Boca Juniors recently, but his mother Berta Gomez insists that he still wants to play club football in Europe.

EXCLUSIVE: Premier League clubs are worried about receiving instalments of transfer fees worth over £100m due from European clubs due to the collapse of TV deals on the continent.

The 20-year-old has already made over 50 appearances for Valencia since making his first team debut as a 17-year-old back in 2017 and has been linked with a move to a host of top clubs.

Around 3,000 Atletico Madrid supporters travelled for their Champions League victory in Liverpool. It came a day after LaLiga announced league games would play behind closed doors.

A scientific adviser is interested to see whether there is a link between the number of coronavirus deaths in Liverpool and Spain after the Reds faced Atletico Madrid at Anfield in March.

The midfielder is a top target for Ole Gunnar Solskjaer's side with the club prepared to bid up to £70million as well as offer him a huge salary increase.

Thomas Partey's agent has dismissed claims made by the player's father, Jacob, that the Atletico Madrid star has entered negotiations to sign for Arsenal.

The most stunning name on the list is £89million flop Antoine Griezmann who only joined from Atletico Madrid last summer but has struggled to convince in Catalonia.

Mikel Arteta had identified Partey as a transfer target earlier in the season, with the Gunners boss hoping to convince the board to strike a deal for the 26-year-old when football returns to normality.

On Friday, a four-hour video conference took place between all 20 Premier League clubs over Project Restart, where tensions were palpable as to how the season should be ended.

Lucas Vazquez has revealed his love of the Premier League, hinting that curiosity could get the better of him and see him leave Real Madrid for England, as Chelsea keep an eye on the winger.

Darmian spent four years at United before joining Parma last summer, but saw Rashford make his first-team debut in his first year at the club before France midfielder Pogba joined a year later.

The Manchester City forward, who would become Puma's highest-paid footballer should the deal go through, is also being pursued by rivals Adidas, New Balance and Under Armour.

Amid unhappiness amongst relegation-threatened clubs on home advantage being lost, the Premier League made it clear last Friday that all 20 grounds could be used next season.

EXCLUSIVE BY MATT HUGHES: The Premier League will make a desperate plea for unity this week amid claims that the bottom six clubs are sabotaging plans to resume the season.

In Saturday's Daily Mail, chief sports writer Martin Samuel considered the growing conflict between top and bottom over restarting the season. Now he responds to reader comments.

West Bromwich Albion midfielder Jake Livermore recalls how he took the young left back under his wing when he arrived in Yorkshire as a quiet teenager from Scotland.