I just rewatched Briggs v Ibragimov and man,, that dude must have one of the worst staminas i have ever seen. That guy was huffin and puffin from round 2. Just standing there trying effortlessly to ko with a right hand while breathing threw his mouth all heavily. I remember when Briggs KOd Lyakohvich, and jesus when he won and as soon as he KOd him, he didn't even celebrate... he went to his corner to catch a 5 minute breather and than he started to celebrate and got up from his stool with his new wbo belt.