Pac has been knocked out (never even dropped in his prime though). Hes been in wars. But hes never taken a one sided ass kicking. Spence is far bigger and younger. Hes a decent fighter, nothing special. But the size and youth combined with being a decent fighter has me worried. Remember against Cotto when Pac was 30 years old he never ran out of energy? Those days are gone. If he gasses hes getting a beatdown. The world 1500m record in the 1500m is 3:26, the world record for 35 year olds is 3:32, for Pacs age group its 3:48. The dropoff is huge. And obviously age explains Pacquiaos drastically depleted gas tank. If Pac gasses I'm gonna have to turn off the fight which I've never had to do before watching any of his fights.