United weren't about to let up after the break and incredibly five goals more followed.
Anthony Martial came off the bench to fire an excellent double, while Scott McTominay drilled home brilliantly.
Bruno Fernandes added another from the penalty spot which saw Bednarek dismissed for his challenge on Martial, before another substitute Dan James netted the record-equalling ninth goal as the Reds matched our incredible scoreline when we beat Ipswich Town here back in 1995.