Master P's son, Mercy Miller, is proving yet again he's a baller on the hardwood ... this time throwing down an insane dunk in a game -- against Bronny James' much-touted high school team no less!
Miller's epic flight happened on Wednesday night when his Notre Dame squad was taking on James' Sierra Canyon team in a highly anticipated game in L.A.
In the fourth quarter of the contest -- which ended up being an 88-61 blowout win for Notre Dame -- Miller drove into the lane, took off on one foot and then hammered home the basketball while blowing through a defender.