The Chilean came off the bench to make a great start in the red shirt after Italian stars Federico Macheda (2) and Davide Petrucci combined to help overcome the dogged Magpies. The victory takes United to the top of the table and it was another fine advertisement for this level of football despite the dreadful weather.
Jonathan Hooper, Romain Amalfitano and Mehdi Abied all rained early shots on Sam Johnstone's goal but it was the Reds who drew first blood on 14 minutes. Petrucci's wonderful tackle on Amalfitano allowed him to release his pal Macheda, who displayed his pace before clipping a left-footed finish wide of Jak Alnwick.
As torrential rain made playing conditions difficult, Robbie Brady skidded a free-kick into the side-netting before an equaliser arrived from Alnwick's mis-hit goal-kick. The ball went to Bradden Inman, who put Marcus Maddison through to confidently fire past Johnstone.
With both sides committed to attack, Jesse Lingard and Petrucci shovelled efforts well wide and Adam Campbell saw a shot cannon off Johnstone's heel and behind from a one-on-one situation. Curtis Good was unable to get a touch from a far-post free-kick as the visitors created the clearer openings but a beautiful goal edged United in front again soon afterwards.
Macheda flicked a Ryan Tunnicliffe pass into the path of Lingard, who teed up Petrucci for a disguised finish into the bottom corner for his fourth goal in three games against the Magpies. Unfortunately, the lead was again short-lived as Inman danced past Tom Thorpe to crack home for 2-2 following a neat pass by the impressive