Wimbledon 2012 trailer: What makes a champion?

Watch BBC Sport's trailer for Wimbledon 2012, where Novak Djokovic hopes to retain the men's singles crown.

World number one Maria Sharapova will rival defending champion Petra Kvitova in the women's singles, while Andy Murray is still searching for his first Grand Slam title.

Wimbledon starts on Monday, 25 June with extensive coverage live on BBC TV, BBC HD Channel, red button, radio and online.

Available to UK users only