LONDON — Beating Novak Djokovic has been beyond virtually every player this year but Roger Federer has the chance to get the better of the Serb for the second time in a week on Sunday.
The 34-year-old ended Djokovic's 23-match winning streak on Tuesday with a classy straight-sets victory in the group stage of the ATP World Tour Finals but knows he will need to be at least as good to repeat that feat in the final.
Federer dispatched fellow Swiss Stanislas Wawrinka 7-5 6-3 to keep alive his hopes of a seventh title at the year-ender, while Djokovic outplayed Rafael Nadal 6-3 6-3.