Mischa Zverev

Djokovic lost to Daniil Medvedev in three sets and thus stopped one step away from achieving the calendar Grand Slam.

Dimitrov - the reigning Cincinnati Open champion - clinched his first Masters title in Ohio 12 months ago.

The world No 5 - who was given a first-round bye as he is seeded for the tournament - edged past Mischa Zverev in a tight second-round match on Wednesday - 7-6, 7-5.

Up next for the Bulgarian will be Djokovic, who has been resurgent over the summer.

Bulgaria's tennis player Grigor Dimitrov has defeated Mischa Zverev in the first round of the ATP tournament in Rotterdam.

The Bulgarian, seeded 5th, won 6:7 (4), 6:", 6;4 after a thrilling encounter which lasted nearly two hours.

SHANGHAI - Serbia's Novak Djokovic, the current world number one in men's tennis, is through to the Shanghai Masters quarter-finals after beating world number 131 Vasek Pospisil of Canada 6-4, 6-4 on Thursday.

Djokovic, who won after 81 minutes of play, is now 4-0 head-to-head against Pospisil.