Ander Herrera denied intentionally spitting on the Manchester City crest at half-time of Manchester United's comeback at the Etihad Stadium.
United overturned a two-goal deficit thanks to Paul Pogba's quick-fire brace in Saturday's memorable 3-2 victory over Premier League champions-elect City, who were forced to wait to seal the title.
Herrera impressed for Jose Mourinho's men, though footage has since emerged of the Spanish midfielder appearing to spit on the City crest on the ground as both teams made their way down the tunnel for the half-time break.
Those claims, however, were swiftly denied, with a United spokesperson saying: "Ander has seen the footage of the incident and is mortified at any suggestion that his actions were deliberate.