Nadal unhappy with three-set Olympic rule

Rafael Nadal has criticized the decision to play the Olympic tennis tournament over the best-of-three format sets rather than the five sets employed at Wimbledon and other Grand Slams.

Nadal kicked off his bid for a third Wimbledon title with a 7-6 (0), 6-2, 6-3 victory over Brazil's Thomaz Bellucci, but the world No 2 will need to take only two sets to win a match when he returns to the All-England Club for the London Games next month.

While that would seem to make it even easier for the Spaniard to dominate at the venue where he has reached the Wimbledon final in his past five appearances, Nadal - who won gold in the men's singles in Beijing four years ago - actually fears it will turn the Olympic event into a lottery.