Kvitova fires coach

Two-time grand slam winner Petra Kvitova has fired coach Frantisek Cermak following a brief partnership.

The pair got together in April this year following her terminating the contract of long-time coach David Kotyza after she was dumped out in the second round of the Australian Open.

What followed was a third round exit at the French Open and a second round departure at Wimbledon, seeing her ranking drop to 16th.

While she managed to win a bronze medal at the Rio Olympic Games, at the US Open, Kvitova was knocked out in the fourth round in straight sets by world number two Angelique Kerber.