Roach's main concern on Saturday after yet another Pacquiao victory was the cramp that had hampered the Filipino southpaw in his left leg from the fourth round on.
It's something you can have when you have such big calves," Roach said. "It does happen here and there and we've had that problem a couple of times in the past, mostly in the gym. We have exercises to try to cope with that.
"He had no leverage to move after it happened tonight. It was a very gutsy performance in my mind because of the handicap in his leg."
Roach was also frustrated by Pacquiao's ultra-friendly demeanor in the ring with Mosley, a fighter who has yet to be knocked out after 54 professional fights.
"I wish Manny had got more aggressive a little sooner," Roach said. "I asked him: 'Why are you touching gloves with this guy? Is he your friend?' I hate that. I hate that in a fighter.
"I said to him: 'Make it personal and knock this guy out. Show the world how good you are.' He said to me he was trying but that his leg hurt."
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