Andre Onana and Casemiro were involved in a heated clash during Manchester United's loss in the Europa League final to Tottenham in Bilbao on Wednesday night.
Following the match, which finished 1-0 to Spurs, footage of the incident was posted to social media in a clip that has since over 1.3million views on X, formerly Twitter.
Goalkeeper Onana and midfielder Casemiro appeared to exchange some choice words after defender Luke Shaw had cleared the ball out for a corner during the opening stages of the match.