The man who claims he was hit by Kelly Oubre in a late-night car wreck earlier this year wants the 76ers star to pay up for the damage he says the hooper caused ... and if the NBAer doesn't open his wallet soon, the guy tells TMZ Sports he's going to sue.
Siddh -- a 21-year-old college student -- says he was driving a 2023 Hyundai Elantra at around 1:45 AM on April 23 in Philadelphia when Oubre ran a red light and plowed into him in his purple Lamborghini Urus.