i wanna say being washed up as a high level boxer is very different than being washed up as a top level mma fighter.. really depends on the fighter and the miles/wars they be in the ring/cage/gym or w/e. i would agree if prime mike and prime chuck fought chuck would keep the fight standing than pulling a couture and going for an ankle pick right off the bat.. prolly would use ton of kicks with range striking vs mikes peekaboo style. washed up mike vs washed up chuck.. no waaaaay chuck would last 20 seconds