Roger Federer's dream of becoming the first man in 87 years to win six US Open titles has been destroyed by the big-swinging Czech Tomas Berdych.
It was the Swiss legend's earliest New York defeat in nine years as the 17-time grand slam title winner, was beaten 7-6 6-4 3-6 6-3 in the quarter finals by the sixth-seeded Berdych.
It was Federer's worst defeat at the tournament since losing to David Nalbandian in the fourth round in 2003.
Berdych, who went into the quarter-final with a 4-11 record against the world number one, will now face British third seed Andy Murray for a place in the title match.
It's the first time the 26-year-old Czech has reached the last four at a grand slam since he made it to the Wimbledon final in 2010.
That was the tournament where he also defeated Federer in the quarter-finals.