Seriously, I think conditioning is not the only thing Morales should be worrying about. Boxing experts and press had been hyping Larios' unbeatable conditioning and stamina, and Larios himself said if he can get Pac in the later rounds, he'll win and from the looks of it (after reviewing the video) he probably believed it because he came charging forward and forward on the tenth up to the early eleventh and then gave up. Pacman just toyed around with him all the while - Larios just didn't have anymore energy by that time. Simply put, Pacman outlasted a guy known for super condition and stamina.