London: Novak Djokovic clinched another year-end No. 1 ranking and a semifinals berth in the ATP Finals with a comfortable win over Tomas Berdych on Friday.
Berdych was dispatched 6-2, 6-2 in a group match, giving Djokovic an unassailable points lead over second-ranked Roger Federer.
Djokovic, the Wimbledon champion, will finish the season No. 1 for the third time in four years. He's the seventh man to accomplish the feat at least three times.