Matheus Cunha cancelled out Brenden Aaronson's strike as Ruben Amorim's Manchester United and rivals Leeds fought out a tense 1-1 draw at rocking Elland Road.
Daniel Farke's promoted side came into Sunday lunchtime's encounter on a six-game unbeaten run but with two days' less rest than their cross-Pennine enemies.
Dominic Calvert-Lewin hit the post in the first half and Leeds began to dream of a first Premier League win against their arch-rivals since September 2002 when Aaronson slammed home after the break.
But that lead lasted just three minutes as freshly introduced substitute Joshua Zirkzee played in Cunha to coolly level and secure the Red Devils a share of the spoils in West Yorkshire.