Wimbledon 2016: Roger Federer says he 'got lucky' to beat Marin Cilic

Seven-times winner Roger Federer admits he was "in trouble" on Centre Court on Wednesday, after coming from two sets down to beat Marin Cilic 6-7 4-6 6-3 7-6 6-3 to secure his place in the Wimbledon semi-finals.

WATCH MORE: Federer wins epic tie-break and takes match

Watch more Wimbledon video here.