Before cops say he stabbed veteran MTA subway operator Myran Pollack and left him in a medically-induced coma last week, Jonathan Davalos attacked another subway conductor in a terrifying random

An MTA subway operator is “fighting for his life” after he was stabbed multiple times Tuesday morning in Brooklyn by a transit recidivist, union officials said.

A train conductor was stabbed Tuesday morning by a passenger in Crown Heights who refused to get off a 4 train at the end of the line, police officials said.

A veteran MTA subway operator fighting for his life after being stabbed nearly a dozen times by an ex-con who refused to exit the train at the last stop was looking forward to retiring in just a few months.