The coach of Ligue 1 club Nice, Claude Puel, suffered a broken nose on Friday after going up to challenge for a high ball in training with one of his players.
Former Monaco, Lille and Lyon boss Puel, who joined Nice in the summer, was caught by his Serbian defender Nemajna Pejcinovic, although the injury will not prevent him from leading Saturday morning's session.
"He wasn't looking too great, so he decided that his nose needed sorting out," joked Nice assistant coach Fred Gioria.
"I am joking of course. Claude went up for a high ball and got caught by Nemanja's head. But he won the ball!"