Unheralded Slovakian Martin Klizan caused the shock of the tournament today as he knocked out fifth seed Jo-Wilfried Tsonga in the second round of the US Open.
The Frenchman, who had been seeded to meet Olympic champion Andy Murray in the quarter-finals, was horribly out of sorts and crashed out 6-4 1-6 6-1 6-3.
Tsonga, a quarter-finalist here last year and a semi-finalist at Wimbledon last month, looked like he had turned things around in the second set but instead Klizan pulled away again in the third.
The Slovakian then opened up a 4-0 lead in the fourth set and, although Tsonga responded to reduce the deficit to 4-3, it was not good enough.
Klizan, ranked 52nd in the world, has had a good season but had never beaten anyone close to the calibre of Tsonga before.
Eleventh seed Nicolas Almagro had to fight back from two sets to one down to defeat German Philipp Petzschner 6-3 5-7 5-7 6-4 6-4 while 17th seed Kei Nishikori beat Tim Smyczek of the US 6-2 6-2 6-4.