Doc and a group of friends hit up Catch in West Hollywood after the Clippers beat the OKC Thunder ... and moments after he sat down, DJ arrived with some pals of his own.
Of course, DJ can pay for his own meal if he wants to ... dude's riiiich ... but we're told the players always appreciate the gesture.
Oh, Russell Westbrook also arrived to the hot spot after the game ... but we're guessing he paid for his own damn food.
BTW -- some solace for you Clipper fans, Doc Rivers told us Chris Paul is gonna be "just fine" after suffering an injury last night. So, your eventual playoff exit is in no peril.