Tomas Berdych withdraws from Miami Masters with stomach virus

Tomas Berdych has been forced to withdraw from his Miami Masters semi-final against Rafael Nadal after contracting a stomach bug.

The Czech had been due to play the world number one this evening, but pulled out shortly before the match was scheduled to get underway with a case of gastroenteritis.

His exit means that no play was necessary in either semi-final, after a groin strain prevented Kei Nishikori from taking on Novak Djokovic earlier.

The top two ranked players will meet in Sunday's final.