Roger Federer photos emerge amid fitness concerns at Laver Cup

A photo of Roger Federer has allayed some fears that he won't be able to compete in his farewell tournament at the Laver Cup after he was captured after training with Stefanos Tsitsipas.

Federer stunned the tennis world when he announced his retirement from the sport last week.

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The 41-year-old has won 20 grand slams and helped take tennis to heights it had never seen on a global level.

Federer said his last tournament would be at the Laver Cup this week, which sparked a frenzy with fans rushing to see their favourite tennis player compete one last time in London.

The opportunity of Federer teaming up with Rafa Nadal in doubles has also garnered attention.

However, fears started over Federer's involvement when his trainer claimed the Swiss icon might not be ready to play in London due to his knee injury.

Federer hasn't played a competitive match in more than a year since his Wimbledon exit.

While speculation swirled over whether Federer would be given a dream send-off, some of the doubt appears to have been allayed.

World No.6 Tsitsipas posted a photo of the duo at the 02 Arena.

The pair appeared to have gone through a practice session with both players in their training gear.

In the photo was tennis icon, and Team Europe captain, Bjorn Borg.

The latest update will give ticket holders, who have spent an enormous amount of money, confidence Federer will take part in the event.

Roger Federer's trainer sparks concern over fitness

The 41-year-old was expected to play at the Swiss Indoors in Basel next month, but announced the Laver Cup would be his final tournament due to his body not recovering from surgery as expected.

Excitement has been gathering for the tournament, which could see Nadal and Federer team up one final time.

The duo will also join forces with Novak Djokovic and Andy Murray on Team Europe - the first time all four members of the 'Big 4' will play on the same side.

But speaking on Sunday, Federer's fitness coach Pierre Paganini cast some doubt on the 41-year-old's chances of being fit to play.

"This will probably be a last-moment decision," Paganini told Swiss newspaper Blick about Federer's participation.

"He's practised at a level in order to determine exactly if playing is a good idea or not."

The photos of Federer on 02 Arena will give diehard fans confidence that the 20-time grand slam champ will wield his racquet one last time.

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