INDIAN WELLS, California - Jannik Sinner crushed Australia's Thanasi Kokkinakis 6-3 6-0 to reach the third round of Indian Wells and extend his winning streak this season to 13 matches, while Andy Murray fell to Andrey Rublev 7-6(3) 6-1.

Sizzling Sinner stayed hot on centre court under sunny but breezy skies in the California desert, fighting off a break point at 2-2 in the opening set with a forehand winner and breaking serve for a 5-3 advantage.