He is definitely a hard worker but is cardio is not good enough to go 5 rounds. Looking back on his ufc fights and even his fights in Cage Warriors he didn't seem to have weak cardio. He went 3 rounds with Holloway with a very high output of punches and kicks and he never seemed to slow down a bit. (First 2 rounds) After the Holloway fight he got more muscle mass. Its a proven point more muscles means less gas in the tank. And now he tries to pace himself with not throwing crazy kicks that waste a lot of energy. Thoughts?