Inter Milan hero Marco Materazzi feels Roma striker Romelu Lukaku should've gone public with his reasons for not staying with the Nerzzurri.

Lukaku, on-loan from Chelsea, returns to Inter and San Siro stadium this weekend.

“Why will San Siro boo Lukaku and have never booed Mourinho?" Materazzi told La Gazzetta dello Sport.

“It's not that difficult, I guess. Lukaku should have just said: 'It was great, thanks for everything etc, etc..' All he had to do was to say it earlier.

“Silence and timing. He has said that when he will speak, many things will be understood. I hope so, but we Inter fans are still waiting.

“If I had made a choice like his, I would have explained it already. There are things you don't need to say, like that night in Madrid, but other times it's important to explain."