David Haye has vowed to knock out Nikolai Valuev when the pair meet on November 7 — even if he is struggling to find sparring partners tall enough.

Russia’s Nikolai Valuev successfully defended his WBA title on Saturday night with a win over former world champion Evander Holyfield.

Evander Holyfield plans to roll back the years to be crowned world champion for the fifth time by beating Nikolai Valuev in Zurich on Saturday night.

At an age when he could be forgiven for slipping on his favourite pair of slippers, relaxing in a fireside armchair and re-watching any one of the 500 or more world-title fights…