No. 4 seed Novak Djokovic of Serbia defeated 14th seed Grigor Dimitrov of Bulgaria 6-2 6-3 in the semifinals of the ATP 1000 Miami Open men's singles, approaching his first win of the season. Djokovic, who followed right after breaking in the opening game, won four games at 2-2, securing the first set. In the second game of the second set, he he