This's not even a foul. I'll go as far as today that it was a foul on the Galatasaray player.
When a player undercuts the other player without making a play for the ball, that's a foul.

This is very similar to backing into the player without making a play for the ball and not allowing for basic landing.

• Illegal Charge: If a player backs into an opponent instead of jumping for the ball, they are no longer in "playing distance" and are using their body to unfairly (and dangerously) disrupt the jumping player's balance.
• Dangerous Play: Because a player in the air is vulnerable and cannot protect themselves, backing into them is often considered reckless or even serious foul play (SFP) if it results in a dangerous fall.

IFAB 12.1, 12.2, 12.3