Grigor Dimitrov survived cramp and a squandered match point to oust world number one Novak Djokovic 7-6(6) 6-7(8) 6-3 in the second round of the Madrid Masters.
World number seven Juan Martin Del Potro pounded India's Somdev Devvarman 6-4 6-4 in the Dubai Championships second round on Wednesday, keeping the Argentine on