LONDON (AP) -- Defending champion Novak Djokovic beat top-ranked Rafael Nadal 6-3, 6-4 to win the ATP World Tour Finals on Monday, extending his winning streak to 22 matches and claiming the season-ending title for the third time.
Djokovic, who has not lost a match since his defeat to Nadal in the U.S. Open final, returned superbly from the start to move his Spanish rival around the court and prevent him from dictating the points.
Nadal hit only nine winners and was broken three times.
Nadal and Djokovic have been dominant this season. Nadal replaced Djokovic for the No. 1 ranking last month, but the Serbian player proved again he still has the upper hand on hard courts by extending his head-to-head winning record to 13-7 on that surface.