Tomas Berdych overjoyed following victory over Roger Federer

Tomas Berdych
© PA Photos
Tomas Berdych admits that his US Open victory over Roger Federer is the best moment of his career.

Tomas Berdych has claimed that the victory over Roger Federer in the quarter-finals of the US Open was the best moment of his career so far.

The Czech shocked the world number one to emerge victorious in four sets at Flushing Meadows and the 26-year-old failed to hold back his excitement.

"It couldn't be better," Berdych said. "There's no better moment so far than this one."

The sixth seed faces Andy Murray on Saturday for a place in the final and admits that he may have to improve if he is to defeat the Olympic champion.

"I'll just try to bring something from today and try to add something a little more for my next match," he added.

Berdych has moved past the quarter-finals of a Grand Slam only once previously, at Wimbledon in 2010.

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ATP RankingsPoints
1Scotland flag Andy Murray7,750
2Spain Rafael Nadal7,555
3Switzerland Roger Federer7,145
4Switzerland Stanislas Wawrinka5,780
5Serbia Novak Djokovic5,325
6Croatia Marin Cilic5,155
7Alexander Zverev4,470
8Austria Dominic Thiem4,030
9Japan Kei Nishikori3,285
10Canada Milos Raonic3,230
11Bulgaria Grigor Dimitrov3,070
12France Jo-Wilfried Tsonga2,770
13Belgium David Goffin2,560
14Spain Roberto Bautista Agut2,425
15Czech Republic Tomas Berdych2,390
16United States Jack Sock2,335
17Pablo Carreno Busta2,305
18Lucas Pouille2,220
19United States John Isner2,110
20United States Sam Querrey2,060