Dominik Mysterio is still WWE Intercontinental Champ after beating AJ Styles at SummerSlam on Sunday -- a match many fans say was his best ever -- but Dom disagrees, telling TMZ Sports he's only getting better!
We caught up with Dirty Dom out in NYC Monday morning ... and he tells us he did "absolutely nothing special" in training ahead of his title defense against the future WWE Hall of Famer.
"He had to prepare for me," Mysterio said.