A short training clip of Mike Tyson recently went viral, and according to the man who was catching the former champ's punches, the iconic heavyweight still has some fight left in him at age 53. "I didn't know what to expect," trainer Rafael Cordeiro told ESPN's Ariel Helwani on Monday. "He hasn't hit mitts for almost 10 years. So I didn't expect to see what I saw. I saw a guy with the same speed, same power as guys 21, 22 years old." Cordeiro, best known for his work in mixed martial arts, added that anyone who gets in the ring with this 2020 version of Tyson ''has to be a good guy to spar with Mike." Cordeiro said he got the opportunity to work with Tyson, the undisputed heavyweight champion in the late 1980s who also held heavyweight titles in 1996, through associates who contacted him about working with "Iron Mike." He said he has been working with Tyson for ''three weeks in a row, cardio, mitts, bags. Like I said before, 53 years old but when he puts his mind to it, his...