Novak Djokovic rallied from a set and a break down Tuesday to beat Alexandr Dolgopolov 6-7, 7-5, 6-0 in the fourth round of the Miami Open. Dolgopolov led 4-1 in the second set before the world No 1 mounted a comeback to remain in contention for his fifth Key Biscayne title. After the second set, Dolgopolov received treatment from a trainer, who bandaged the soles of both feet. Novak Djokovic came back from a set down to reach the quarter-finals of the Miami Open on Tuesday . Alexandr Dolgopolov had both of his soles bandaged and won only three points in the final set . The Russian moved poorly after that and won only three of 27 points in the final set. As Djokovic fell behind in the first set, he busted a racket in anger, drew jeers from the crowd and was cited for two code violations, which cost him a point penalty. However, he won a succession of long exchanges late in the second set that allowed him to even the match. Djokovic claimed a succession of long exchanges in the second set to even the match and go on to win .
Novak Djokovic came from a set down to beat Alexandr Dolgopolov . The world No 1 remains in contention for his fifth Miami Open win . Dolgopolov became less mobile after receiving treatment to his feet .