The Olympic tennis event has reached the semi-final stage and Friday looks set to be grandstand day at Wimbledon.

Here, Sports Mole gives you a rundown of what's on at Wimbledon on the seventh day of Olympic tennis competition.

Centre Court (12pm start):

Federer (SUI) vs. Del Potro (ARG)
Azarenka (BLR) vs. Williams (USA)
Murray (GBR) vs. Djokovic (SRB)
Kirilenko/Petrova (RUS) vs. Williams/Williams (USA)

Court No. 1 (12pm start):

Huber/Raymond (USA) vs. Hlavackova/Hradecka (CZE)
Sharapova (RUS) vs. Kirilenko (RUS)
Ferrer/Lopez (ESP) vs. Llodra/Tsonga (FRA)
Robson/Murray (GBR) vs. Stosur/Hewitt (AUS) - quarter-final

Court No. 1 (12.30pm start):

Bryan/Bryan (USA) vs. Benneteau/Gasquet (FRA)
Vinci/Bracciali (ITA) vs. Lisicki/Kas (GER) - quarter-final
Raymond/M Bryan (USA) Dulko/Del Potro (ARG) - quarter-final
Azarenka/Mirnyi (BLR) vs. Mirza/Paes (IND) - quarter-final