Mark Cuban isn't waiting for the NBA season to start to hit the court -- 'cause the 64-year-old Dallas Mavericks owner had a shooting session with a famed trainer, and his jump shot is sick!!
Cuban had a 1-on-1 sesh for almost 3 hours with Chris Matthews -- referred to as "Lethal Shooter" by his millions of followers online -- where the two worked on everything from form, mechanics, and footwork.
In the video, you see Matthews working with the billionaire on a series of mid-range jumpers and three-pointers, and the "Shark Tank" star did his best Steph Curry impersonation.
"His dedication to the game was unreal, didn’t want to leave the court," Chris said of Cuban's performance. "Now that’s locked in! Keep doing your thing, brother," he added.