Tennis: Djokovic into Wimbledon semi-finals

World number one Novak Djokovic reached his 13th consecutive Grand Slam semi-final on Wednesday with a 7-6 (7/5), 6-4, 6-3 win over Czech seventh seed Tomas Berdych.

Djokovic, the 2011 champion, will face Juan Martin del Potro, the Argentine eighth seed, for a place in Sunday's final.