Alex Telles slipped it down to Paul Pogba on the left-wing, who held off big-money Wesley Fofana with strength and stutters to fire a low cross into the box.
It looked destined for out-of-favour summer signing Donny van de Beek, who was being pressed by United graduate Jonny Evans, but the Dutchman came up with a moment of pure intelligence.
Van de Beek produced a dummy, leaving the ball to roll through his legs, which meant that it continued on into the middle of the area, where Mason Greenwood drilled home with a tidy first-time finish.
Greenwood equalises! ⚽— Football on BT Sport (@btsportfootball) March 21, 2021
Great play from van de Beek to leave it for the teenager to finish. ?
Game on! ?#EmiratesFACup pic.twitter.com/SDKzNTMqE2
This marks the first goal for Greenwood in just shy of two months, hopefully the boost that springs the wonderkid to a strong end to the campaign.
Manchester United fans probably wouldn’t dream for any other three players to combine for a goal.