'I'm just opening toolbox' - Verhoeven insists he has armoury to hurt Usyk again

Rico Verhoeven insists he has plenty of tools in his armoury to surprise Oleksandr Usyk a second time.

Verhoeven came close to taking the unified world heavyweight champion the distance in their showdown earlier this month before Usyk forced a stoppage in controversial circumstances, with just one second remaining in round 11.