Bruno Fernandes and Casemiro engaged in a heated discussion after Manchester United beat Aston Villa in the Premier League on Sunday.
Manchester United captain Fernandes netted the only goal of the game on the 39th minute to hand his side a boost in the race for Champions League football.
While the Portugal international was subject to heckling from Villa fans at Old Trafford, it was his own teammate that he reacted to come the full-time whistle.
Casemiro was pictured wide-eyed during a conversation with Fernandes at full-time before Harry Maguire came over to the pair.