Nick Turturro went NUCLEAR on Dodgers star Joc Pederson over the weekend -- with the actor claiming Joc FLIPPED HIM OFF during the game ... and now they're enemies for life!
FYI, the "NYPD Blue" star is a HARDCORE Yankees fan -- and was sitting front row at Dodgers Stadium on Sunday to watch his Bombers take on the Blue Crew at Dodgers Stadium.
Nick was going crazy during the game -- celebrating and cheering so hard, he was featured several times during the broadcast on FS1.
But after Joc's first at-bat (a solo home run), Turturro claims Pederson looked right at him and shot him the bird .