Tiger Woods, Obama, Phelps lead tributes to Serena

'How lucky were we to be able to watch a young girl from Compton grow up to become one of the greatest athletes of all time' 'I'm proud of you, my friend - and I can't wait to see the lives you......

How Tiger 'motivated' Serena to go for the kill

'He's one of the reasons I'm here, one of the main reasons I'm still playing.' IMAGE: Serena Williams delivered a very Tiger-esque effort, tapping into her famous fighting spirit to register an......

Serena, 'the ultimate competitor'

'She's in that level where Michael Jordan, LeBron James and Tom Brady are' 'She can spend the rest of her life going 'not bad huh' 'She's taken tennis off the sports pages and into pop culture. She......

Wimbledon PIX: Serena retires; Federer survives while Zverev, Barty through to second round

Images from Day 2 of the Wimbledon tennis championships in London, on Tuesday Federer survives big scare as Mannarino retires injured IMAGE: Roger Federer in action......

US Open PIX: Serena in quarters; Mertens stuns Kenin

IMAGES from Day 8 of the matches played at the US Open at Flushing Meadows on Monday IMAGE: Serena Williams celebrates a point during her fourth round match against Maria Sakkari of Greece at the......