BBC Sport - Wimbledon 2016: Kei Nishikori forced to retire hurt against Marin Cilic

Not a fair fight - Nishikori retires against Cilic

Watch as Kei Nishikori is forced to retire hurt for the second year running at Wimbledon. The fifth seed eventually gave in trailing 6-1 5-1 to Marin Cilic, who moves into the quarter-finals.

Watch more Wimbledon action here.