Results Monday from the ATP World Tour finals on indoor hard courts at the O2 Arena (seedings in parentheses):
Novak Djokovic (1), Serbia, def. Roger Federer (2), Switzerland, 7-6 (6), 7-5.
Marcel Granollers and Marc Lopez (6), Spain, def. Mahesh Bhupathi and Rohan Bopanna (5), India, 7-5, 3-6, 10-3 Champions tiebreak.