Next weekend, Oleksandr Usyk is set for a unique challenge as he takes on kickboxing icon Rico Verhoeven – at the pyramids of Giza, no less . The fight will take place under pure boxing rules, as Usyk defends the WBC heavyweight title against the Dutchman, who has boxed just once professionally (but who has long trained under Tyson Fury’s uncle Peter ). The unbeaten Usyk, 39, is naturally a heavy favourite here, with the bout seen as somewhat of a side quest before the Ukrainian’s next fight, which is expected to be a WBC mandatory title defence . Oleksandr Usyk (left) facing off with kickboxing icon Rico Verhoeven (Getty) Still, the unified champion cannot afford to be complacent against Verhoeven, 37, who is one of the greatest strikers that combat sports has ever seen. Here’s all you need to know: When is the fight? Usyk vs Verhoeven will take place on Saturday 23 May at the pyramids of Giza in Egypt.…