Andy Murray was leading Rafael Nadal 6-2 7-6 2-3 when rain halted their US Open semi-final.

The remnants of Tropical Storm Hanna forced the match to be abandoned until Sunday, weather permitting.

Murray, dominating his opponent from the baseline with his deeper groundstrokes, swept through the first set in just over half an hour before clinching the second 7-5 in a tie break.

World number one Nadal has not lost to the Scot in five previous meetings but, like his opponent, was competing in his first US Open semi-final.

Murray, the British number one and world sixth seed, is bidding to become the first Briton since Greg Rusedski in 1997 to reach the US Open final.

Whoever wins will play four-times defending champion Roger Federer in the final, after the Swiss master battled past Serb Novak Djokovic 6-3 5-7 7-5 6-2.

The women's final between twice former champion Serena Williams and Serbian second seed Jelena Jankovic was postponed and is now expected to take place on Sunday.

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