I do firmly believe that it can happen that way. Biggest example to me was Morales/Pacquiao 3. Even though Pacquiao was really getting a lot better during that time, there was a huge penalty for Morales being overweight. So he was working with a conditioning coach doing football workouts. Came in super ripped, but didn't do any boxing training from what I remember. Got taxed. But again, that's not what happened here with Canelo. He was just beat by a much better boxer.