is unbeaten in 41 fights spanning 16 years and four weight-classes. The 37-year-old switch hitter from Omaha, Nebraska is a slick and punishing operator with finishing instincts unmatched. On his way to the very top of the pound-for-pound list, he has beaten the likes of Ricky Burns, Vitktor Postol, Kell Brook, Shawn Porter and Errol […]
