The Argentina international now has double figures in both goals and assists in all competitions in the current campaign.
Garna set up Mason Mount’s opening goal with a superb first-time cross for his 10th assist, before taking his goal tally to 11 with a stunning strike which made it 4-2 - which is one more than he scored last term.
But how many United players in recent times have achieved the same feat?
With the help of Transfermarkt.co.uk data, we’ve looked back over the past 10 seasons to see which Reds have netted at least 10 goals and registered 10 assists in all competitions in a single campaign.