Wladimir Klitschko (64-4, 53 KOs) is seeking to regain his status as world heavyweight champion boxer, as he takes on undefeated Anthony Joshua (18-0, 18 KOs) for Joshua’s IBF and the vacant WBA (and less importantly, IBO) titles. Klitschko is coming off a decision loss to Tyson Fury in November 2015, his first defeat since a stunning knockout against Lamon Brewster over a decade ago. After that, he ruled the heavyweight division and was the consensus #1. He enters this Saturday’s contest as the betting underdog against the 2012 Olympic gold medalist, but you most certainly can’t count him out of this matchup.