Results on Friday from the 10th day of the ATP Masters and WTA BNP Paribas Open (x denotes seeded player):
Men
Quarter-finals
Novak Djokovic (SRB x1) bt Jo-Wilfried Tsonga (FRA x8) 6-3, 6-1
Juan Martin Del Potro (ARG x7) bt Andy Murray (GBR x3) 6-7 (5/7), 6-3, 6-1
Women
Semi-finals
Caroline Wozniacki (DEN x8) bt Angelique Kerber (GER x4) 2-6, 6-4, 7-5
