Erik ten Hag was involved in a heated row with the Cadiz manager during Manchester United's friendly defeat on Wednesday night.
United were beaten 4-2 by the Spanish side, who are currently second bottom of La Liga. Ten Hag's side were 2-0 down within the first 14 minutes and, despite battling back to 2-2 thanks to goals from Anthony Martial and youngster Kobbie Mainoo, they succumbed to a defeat.
They went in at the break 2-1 down following an argument between the two sets of staff on the touchline. Ten Hag and his Cadiz counterpart Sergio Gonzalez became embroiled in an angry confrontation, which had to be broken up by the fourth official.