Serena seals Grand Slam hat-trick

US Open, Flushing Meadows, New York

Women's final
(1) S Williams (US) bt (2) V Williams (US) 6-4 6-3

Serena and Venus pose for the cameras ahead of their third Grand Slam final meeting of the season

Two double faults by Venus in the ninth game of the first set allow Serena to break her sister's serve

Serena presses home her early advantage and takes the first set 6-4

Things get worse for Venus at the start of the second set as Serena breaks her twice to race into a 4-1 lead

Venus looks like she needs a breather after being on the end of some superb shots

Venus fights back to 5-3 but another double fault in the ninth game gives Serena the title