NBA Star Ronny Turiaf -- Slapped w/ THREE Tickets ... Welcome BACK to L.A.

Los Angeles Clippers Star Ronny Turiaf is finally playing ball again in L.A. ... and the welcoming committee presented him with THREE traffic tickets in one day.

Law enforcement sources tell TMZ, Turiaf -- who signed with the Clippers back in July after a 5-year absence from L.A. -- was driving in Santa Monica Friday when he caught the attention of cops, because Ronny was blasting music with the windows down.

Police quickly noticed Ronny's whip was one big moving violation -- his front windshield was tinted (violation), he had no front license plate (violation) and he didn't have the proper registration sticker (violation).

Ronny got three fix-it tickets -- meaning he can skate with a small fine if he corrects the problems.