Inter Milan great Walter Zenga has questioned their deal for Hakan Calhanoglu.

The Turkey midfielder is joining Inter as a free agent from city rivals AC Milan.

Zenga said, "When (Christian) Eriksen has a problem, and thank goodness he should be okay, Inter finds itself with an important hole in the squad.

"He [Calhanoglu] is free, and then he has more or less those characteristics.

"Calhanoglu has found himself in the right place at the right time. Inter will have asked Simone Inzaghi and he will have given his yes, then ethically speaking to go from one side of the city itself is a bit complicated."