We do not know the specifics, but it all seems to indicate that one of Donk's sons has had to have surgery.
Of course Galatasaray have excused the Dutch central defender from playing the Istanbul derby with Besiktas this Sunday afternoon.
It will be an unusual derby because neither Galatasaray nor Besiktas are going through their best spell. Gala are seventh, five points off the lead while their opponents are just outside the relegation zone with just nine points from eight matches.