A man was killed in a rollover car crash on Long Island early Monday morning — and two people were injured when a responding cop car was struck in a separate incident moments later, police said.

Rhea Perlman is weighing in on the recent death of her former “Cheers” co-star, George Wendt. “That was the saddest thing ever, when George passed away,” Perlman, 77, exclusively told The Post while ...