Novak Djokovic Beat Roger Federer To Win ATP Finals

Novak Djokovic won his fourth straight title at the season-ending ATP finals by beating six-time champion Roger Federer 6-3, 6-4 Sunday.

Djokovic, who won three Grand Slam titles this year and reached the final in the other, capped the best season of his life with another superb display on the tennis court, including winning 16 of the 19 points on his second serve and saving both break points he faced.

Tennis: Djokovic Sets New Record As He Defeats Kei Nishikori At ATP Finals

Novak Djokovic was yet again a class apart as he claimed a record 15th straight ATP World Tour Finals victory in the first game of the tournament against Kei Nishikori.

The world number one has won the season-ending extravaganza three years in a row and it is difficult to envisage him failing to triumph for a fifth time in total in London.

Djokovic stretched his winning run to 23 matches by outclassing Nishikori, coasting to a 6-1 6-1 victory in the Group Stan Smith opener at the O2 Arena in only 65 minutes - and breaking the record for the longest winning run in the tournament.