A guy like Manny Pacquiao or Floyd Mayweather is used to fighting 12-rounders. Put them into the ring for three rounds against a top amateur boxer at a much faster pace, and they'll lose a fight, and how bad is that going to make them look?
No one likes getting hit. It's a normal thing... I used to make up excuses when the coach would ask me to get in the ring. I'd say I forgot my mouthpiece, or I'd say I had a headache or something.
