Well, it finally happened ...
Shaq's son says he's 100% confident he can BEAT his old man on the court -- saying the NBA legend is just too old and slow to keep up!!
For the record, Shareef O'Neal is a stud in his own right -- becoming one of the top high school players in the country. And when we saw him out in L.A. Thursday, Reef told us he's VERY confident in his skills.
"Now that I'm 6'9", it's way easier for me to compete against him," Shareef said ... "He's slow. He can't guard me! I'm too quick for him!"
Of course, it's all love -- but Shaq ... ANSWER THE CHALLENGE!!! WE GOTTA SEE THIS PLAY OUT ON THE COURT!!!