Fenerbahce coach Jose Mourinho mocked himself after colliding with a player during a first-team training session on Thursday.
While preparing for Sunday's league match against Trabzonspor, the 61-year-old fell to the ground after being hit from behind by midfielder Ismail Yüksek.
The player was chasing the ball and accidentally collided with his coach.
The former Chelsea and Manchester United manager was quickly assisted by the players and medical staff quickly rushed to his aid.
He was then seen visibly limping as two team members helped him off the field.
Mourinho posted a video of the incident on Instagram and wrote: “Lesson for young coaches: 'never wear the same color as the players'… they can pass the ball to you… or kick you from behind.”
Mourinho joined Fenerbahce in the summer, six months after being sacked by Roma. Fenerbahce is third in the Super Lig, seven points behind leaders Galatasaray.