Joyce misses out on heavyweight title shot as Gassiev opponent confirmed

Murat Gassiev's first defence of his WBA heavyweight title will go ahead on Saturday after a replacement opponent was found for the Russian.

Gassiev, who was elevated from regular to full WBA champion status after Oleksandr Usyk vacated the belt last month, had been scheduled to face Tony Yoka before the Frenchman dropped out with a back injury.