I was never a Rangers fan, but I was a hockey fan and used to listen to the Rangers broadcasts all the time with Marv Albert and Sal “Red Light” Messina.
I assumed the nickname was a jab at a former goalie, but given Albert’s later scandals maybe he had another type of red light in mind.
they were a great team...one of the funniest things I ever heard live was after a wayward puck headed towards their booth Marv quipped, “and just like his playing days in the net Sal ducked as the puck was flying towards us.”