Matheus Cunha was seen gesturing angrily towards Manchester United fans as the home crowd made their frustrations clear after their 1-1 draw with rock bottom Wolves at Old Trafford.
Man United were booed off at full-time on Tuesday night after being held by Wolves, who had earned just two points prior to the match.
Footage at full-time showed Man United players heading towards the tunnel, with several fans making their feelings clear after Ruben Amorim's side let more points slip at home.
Cunha, who had been facing his former club, could be seen gesturing in response to the Man United supporters.