Inter Milan coach Luciano Spalletti is frustrated managing Radja Nainggolan.
Spalletti has called on Nainggolan to stop being distracted by matters outside of football.
"We love him, he is a sensitive boy and he has all the qualities of the person who behaves correctly. But sometimes even the father grumbles with his son," Spalletti told reporters.
"Radja is attracted to other things and if you put too many things in front of football you do not win.
"He has three or four of things he puts in front of football and some of them have to be taken away."