are you aware they fought already? and Gamboa won by UD? could have been a 12 rd KO if Gamboa didnt foul salido,hitting him while on the floor.
First time Gamboa had Salido KOd and decided to unKO him by slappin his head while he was KOd and allowing him all the time he wanted to recover. Next time, Gamboa would probably just KO him earlier, without unKOing him after, adding an additional KO to his digits.