Wawrinka beats Nadal to enter Paris Masters semis

Novak Djokovic extended his win streak to 20 at Paris Masters, defeating Tomas Berdych to reach semis.

Djokovic will next play Stan Wawrinka, who sent Rafael Nadal packing 7-6 (10/8), 7-6 (9/7).

Andy Murray made the last four of the Paris indoors for the first time.