Pacman is the only champion in 8 weight classes and definitely one of the best boxers of today, so even at 46 he can knock out many more boxers and his training is impressive.
Nevertheless Freddie Roach was against such a Pacman comeback and considering their long-standing partnership you can definitely say that he is worried about Pacman. In addition, his opponent is not just average boxer, but still a champion in this weight class and it will be more difficult to knock out such a boxer than a passable opponent.
In general, my heart would like to bet on Pacquiao, especially on a beautiful knockout, but my mind says to bet on Mario Barrios.
I want Pacquiao to win also since he is a good fighter and citizen here in Philippines by helping the poor using his money earned on boxing.
I’m just being realistic here that Pacquiao is on disadvantage because age has a high impact on physical games most importantly boxing. Surely he still has K.O potential but he is fighting a prominent boxer too on this current generation.
Anyway, he is still winning money regardless of the result. I will just watch this fight in the sideline and avoid betting.