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In his older age, he needs a minimum recovery time of 1 year and this might be the shortest if he wants to chase the welterweight championship and have a rematch against Barrios.
I'm not in support of him asking for a rematch. But then, it's his choice to make. I'm not comfortable seeing elderly boxers fight because it's a combat sport. Anything can go wrong during a bout. Yeah, I know boxing is the only sport where athletes are licensed to kill in the ring but it won't be nice urging people into it just to watch them get killed.
Also, you want Pacman vs. Boots Ennis? I will be sorry for Pacman fans because Boots will give him a knockout similar to the knockout he received from Juan Manuel Marquez. I am quite certain of this.
No, I don't want him to go into any fight again. Though I routed for him to defeat Barrios in the last fight, it didn't happen that way. That's one of such things in life. A draw wasn't bad either for both men. At least the outcome keep both men's ego intact.
On the part that you think it's going to be a handicapped match in favour of Boots Ennis against Pacquiao, don't be too sure of that. We've seen less rated boxers outclass favourites. Pacquiao may have advanced in age but he's certainly not a pushover.