Shareef O'Neal is out of heart surgery -- and he's already thinking about his return to the basketball court!
The UCLA basketball star went under the knife early Thursday morning to correct an irregularity that team doctors had spotted during a routine checkup earlier this year.
The good news ... Shaquille O'Neal's 18-year-old was in great spirits when he got out of surgery Thursday evening -- and posted a message to his fans (that he dictated to his younger sister).
"I made it, Thank you for all the love and support! I really appreciate all your thoughts and prayers, that's what helped me through this surgery.