Honestly Pac should just retire now, and avoid messing up his legacy by losing less meaningful fights. Nothing left to prove, so its time to ride off into the sunset.
Manny would put a serious beating on him. People here are making it seem like Pacquiao has nothing left. His hands are still lightning fast and he threw over 800 punches against Ugas. Put him in with a pressure fighter who won’t look to box and move and he can still be very effective.