Roger Federer has beaten Jo-Wilfried Tsonga in three sets to retain his ATP World Tour Finals title.
In a tight opening set, the world number four was able to snatch a break in the Tsonga serve before he claimed the set 6-3.
The Swiss found another break in the second and could have served for the match when he had a break point at 4-2, but Tsonga dug in with the help of the O2 crowd to take the set to a tie-break.
Federer seemed to be in control during the tie, but a determined Tsonga gained the momentum to overpower his opponent 8-6 and take the match to a final set.
The players remained on serve until the eighth game, which Federer broke. The former world number one then served out the match in emphatic style.
Written by
Jack Prescott
Jack Prescott
