Novak completed dream season capturing a career-high 11th title of the year and fifth ATP World Tour Finals trophy (b.Federer 6-3, 6-4)
Novak is one win away from defending his Barclays ATP World Tour Finals title after he beat Rafael Nadal 6-3, 6-3 at the O2 Arena.
Defending champion advanced into the Barclays ATP World Tour Finals last four with a 6-3, 7-5 victory over Tomas Berdych in his final Sam Smith Group round robin match at the O2 arena on Thursday.
Top seed and defending champion suffered his sixth match loss of a season on Tuesday in his second RR match at the Barclays ATP World Tour Finals.
Nole produced another perfectly composed performance on Sunday at the Barclays ATP World Tour Finals.
The world’s biggest indoor tournament begins on Sunday, November 15, at the O2 Arena in London, and will be played until November 22.