SIOUX FALLS, S.D. (KELO) — Boxer Deonte “Slzzp” Walker added another big win to his resume on June 27. It had been five months since Walker last got into the ring and four years since he has lost a bout, but it was training like a loser that earned him the WBA NABA Welterweight Silver title. “My favorite thing that my coach tells me is make sure you leave the gym everyday feeling like you lost,” Walker said.