Question: Gary Cornish and Anthony Joshua engage in what combat sport? 
Sentence (from "SCA armoured combat"): SCA armoured combat, or informally heavy combat, is a combat sport developed by the Society for Creative Anachronism (SCA) in which participants in protective body armour either "act out" mock combats loosely inspired by forms of historical combat practiced in medieval Europe or under supervision, may approximate historically real combat using SCA approved safe weapons under the watch of marshals to maintain safety.
Relevant evidence: No