Jo-Wilfried Tsonga has reached the ATP World Tour final with a straight-sets win over Tomas Berdych at the O2 in London.
The Frenchman found the all-important break midway through an evenly-matched first set to claim it 6-3.
The 26-year-old found another break in the second when the hard-hitting Berdych double faulted, but the Czech then found a break himself to put the pressure back on the world number six.
The tension increased at deuce with the scores tied at 5-5, but Tsonga managed to break before he served out the set 7-5.
Tsonga takes on reigning champion Roger Federer in tomorrow's final.
