He was down against Bronco McKart, but that was a shot to the body that caught Pavlik off balance. I read that he was down in an earlier fight, but I didn't see it.
Zuniga, rd 1- KP then went on to dominate and it ended rd 9. McKart, rd 3 scored a knockdown, bs, ended with a body shot rd 6. His 5th fight Bedburdick knocked him down in rd 1, TKO in rd 3.
i watche d the zuniga fight but caught the end of it didn't see the knock down ... but he took some flush shot from miranda.. over all i think his chin is pretty good
I think tall rangy fighters are somewhat prone to flash knockdowns due to balance issues that don't necessarily reflect the quality of their chin