MIKE DICKSON IN NEW YORK: Men's tennis will get a taste both of its glorious recent past and uncertain future in Sunday's final of the US Open.

Last week Greta Thunberg retweeted a post calling the tennis player out on the sponsorship. Federer then released a statement this weekend saying he takes the threat of climate change very seriously.

Manchester United midfielder Ethan Hamilton is a loan target for Southend United. The 20-year-old box-to-box midfielder impressed on loan at Rochdale last season.

The struggling club has delivered news to supporters that will provide the club with a future beyond the next two weeks after it was purchased by Football Ventures Limited.

Bolton defender Joe Bunney was admitted to hospital with a broken collarbone and broken ribs after a road traffic accident.

EXCLUSIVE BY MATT HUGHES: Sportsmail has learned that a proposal to bring in fixed sporting sanctions for missed games will be tabled as part of a wider discussion.

EXCLUSIVE BY MIKE KEEGAN: The League One side have instead been handed a five-point penalty which is suspended for 18 months, in what will be viewed as a major boost for the club.

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.

Justin Gatlin remained unbeaten this season by winning the 100 metres at the Golden Spike meet on Tuesday, clocking 9.86 seconds to improve his own world-leading time of the year.

On Thursday night in Lausanne, Switzerland, three sprinters broke the 10-second barrier for the 100 metres: Justin Gatlin, Tyson Gay and Mike Rodgers. Gatlin’s 9.80secs was the quickest time in the world this year.

American sprinter Justin Gatlin finished the season undefeated in all of his 18 races with a 9.83 seconds 100 metre win at the IAAF world challenge meeting in Rieti on Sunday.

Sebastian Coe has questioned the nomination of former drugs cheat Justin Gatlin as one of the IAAF's athletes of the year after the new research in to long-lasting effects of steroids.

Switzerland is renowned for being neutral but the country nailed its colours to the mast where drug cheats are concerned by hosting the dirtiest Diamond League race this century.

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.

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.

Few players are heading into the summer with their future as uncertain as Barcelona's Philippe Coutinho. With that in mind, Sportsmail assesses his potential landing spots - and where he suits best.

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.

​Bayern Munich chairman Karl-Heinz Rummenigge has voiced his opposition to the formation of a European Super League.

Former Manchester United and Tottenham star Dimitar Berbatov has urged Timo Werner to sign for Bayern Munich instead of Liverpool this summer. He has impressed for RB Leipzig.

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.

First-team stars Robert Lewandowski and Kingsley Coman were seen entering Bayern's training facility on Monday morning as the players returned to action in small groups.

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.

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.

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.

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.

Kingsley Coman joined Bayern Munich originally on loan when Pep Guardiola was manager. The French international has praised his former manager as the best 'a winger can have'.

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.

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'.

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.

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.

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.

German politicians have suggested that the Bundesliga could return as early as May 9. The league was suspended due to the coronavirus outbreak with nine matches still to play.

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.