After seeing Gamboa in that Farenas bout, I really think Brandon Rios would of stopped him. You know tht at some point in the fight Gamboa would of exchanged and started swinging with Rios and he probably would of went down and stayed down. Id still love to see it happen though.
Gamboa rehydrated 18lbs against Farenas. Had he fought Rios @135, he wouldn't have had to drain himself, while Rios would've been the one suffering from weight-drain. I think Rios loses at 135 and wins at 140.
Anyway, he shouldn't be worrying about Rios because that's already in the past. Focus on Uchiyama and the other 130lbers.