Injury wrecks Djokovic's Wimbledon hopes

Triple champion Novak Djokovic has retired from his Wimbledon quarter-final against Tomas Berdych with an arm injury.

An upper arm injury has forced Novak Djokovic to abandon his Wimbledon campaign midway through his quarter-final with Tomas Berdych.

The three-time champion retired while trailing the Czech world No.15 and former finalist 7-6 (7-2) 2-0 on Court 1 on Wednesday.

Djokovic's departure leaves world No.5 and seven-times champion Roger Federer as the highest remaining man in the draw following the loss earlier on Wednesday of top-seeded titleholder Andy Murray.