World number one Novak Djokovic shrugged off signs of fallibility with a dominant straight-set win over Tomas Berdych in his last round-robin contest at the ATP World Tour Finals.
The Serbian claimed a 6-3, 7-5 win over Berdych to finish second in the Stan Smith Group behind the unbeaten section winner Roger Federer.
Djokovic’s 23-match unbeaten run was ended by six-time winner Federer on Tuesday.
Djokovic, who received the Year-End number one trophy, will next take on Rafael Nadal in the semifinals on Saturday.
