Manny Pacquiao's Next Opponent Mario Barrios Reveals His Honest Feelings on Fighting Boxing Legend 'I Was Rooting Against Him Growing Up' originally appeared on Athlon Sports. While anticipation ...

Manny Pacquiao has gone toe-to-toe with a who's who of great boxers throughout his iconic career, but the Filipino icon has surprisingly snubbed Floyd Mayweather as his most difficult opponent.