Manny Pacquiao may consider retirement after Brandon Rios fight

"I know people are skeptical about that. Manny is a realist. He accepts it. It does not bother him," Roach said. "If you don't think you're going to be

"I know people are skeptical about that. Manny is a realist. He accepts it. It does not bother him," Roach said. "If you don't think you're going to be knocked out, you've got the wrong sport."