Adrien Broner -- I Shouldn't Have Dissed Jay Z

Boxing superstar Adrien Broner says he's shouldn't have "disrespected" Jay Z -- but even if they bury the hatchet, he says there's no chance they'll ever work together in the future.

Broner appeared on "TMZ Hollywood Sports" Monday and explained why he's backing off the insults he threw at Jay and Rihanna last week -- but standing firm when it comes to rejecting Jay's $40 million contract offer.

We asked Broner if he was worried about retaliation from Jay's camp. His answer is interesting.