Dwyane Wade's Son Throws Down Alley-Oop In Front Of Dad In HS Season Opener

Proud Dad moment for Dwyane Wade on Thursday night ... the NBA legend got to watch his son play in his HS season opener -- and the kid threw down a sick alley-oop!!

The show all went down in front of a sold-out crowd in San Diego ... where Zaire Wade's Sierra Canyon squad beat the hell out of Montgomery HS, 91-44, in its 2019 debut.

Zaire only scored 6 points ... but he made two of them REALLY count -- catching a lob and putting it home, all while Dwyane watched from his courtside seat!!

Of course, Wade was also there to support his best buddy LeBron James' son, Bronny, who was playing in his first-ever HS game.

And, Wade got to see the young James ball out too ... 'cause the kid scored 10 points off the bench and knocked down some DEEP triples!!!

Poppa James couldn't make the trip -- the Lakers are on the road to play Oklahoma City on Friday night -- but something tells us Dwyane's already given him the full report.