British heavyweight Anthony Joshua and world champion Wladimir Klitschko have faced each other in sparring as they prepare for their respective matches in September.

Joshua is scheduled to compete in Manchester on September 13, with Klitschko attempting to defend his world titles in Hamburg against challenger Kubrat Pulev a week earlier.

Depending on the longevity of Klitschko's career, it is unclear whether the two Olympic gold medallists will ever meet in a competitive bout, but it would have been considered an invaluable experience for Joshua to work alongside the unified title holder in training.

Joshua has won his first seven matches as a professional, all inside the opening two rounds.