Murray says fitness was key in his triumph at Miami

Andy Murray became the first Briton to win the Sony Ericsson Open with a straight sets win against Novak Djokovic on Sunday and afterwards attributed his improved fitness as a key reason for his success.

Andy Murray became the first Briton to win the Sony Ericsson Open with a straight sets win against Novak Djokovic on Sunday and afterwards attributed his improved fitness as a key reason for his success.

The 21-year-old was in superb form during the Miami tournament, dropping just two sets on the way to the final which he convincingly won 6-2, 7-5 despite the blistering hot conditions.

"(It) just gives you more confidence going into the matches knowing you're in good shape," he said.

Murray admitted he still has some way to make up to compete with the likes of Nadal, Djokovic and Roger Federer on the surface if he wants to break into the top three. "The clay-court season will be very important for me now," Murray said. "On hard courts, my game is up there with the others but on clay it hasn't been the same. I need to improve."

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