Tour Finals PHOTOS: Wawrinka knocks out Murray; Nadal survives Ferrer

IMAGE: Switzerland's Stanislas Wawrinka celebrates during his match against Great Britain's Andy Murray in their round-robin match at the 02 Arena in London on Friday. Photograph: Suzanne Plunkett......

ATP Tour Finals PHOTOS: Impressive Nadal powers past Murray, Wawrinka recovers to down Ferrer

IMAGE: Spain's Rafael Nadal plays a forhand in his men's singles match against Andy Murray during the ATP World Tour Finals at the O2 Arena. Photograph: Clive Brunskill/Getty Images Rafael Nadal......

ATP Tour Finals PIX: Nadal hammers wayward Wawrinka, Murray beats Ferrer

IMAGE: Spain's Rafael Nadal celebrates a point in his men's singles match against Switzerland's Stanislas Wawrinka on Day 2 of the Barclays ATP World Tour Finals at O2 Arena in London on Monday.......

Tour Finals PIX: Djokovic is year-end World No 1; Bopanna-Mergea down Bryan twins

Federer strolls past Berdych IMAGE: Serbia's Novak Djokovic holds aloft the trophy for finishing Number One ATP Men's Tennis Player in the World for 2015 following his win against Kei Nishikori at......