Galliani said: "Flamini will arrive tonight in Milan and will sign a four year contract."

Flamini is expected to undergo a medical on Monday.

Gunners boss Arsene Wenger admitted on Sunday after his side's 1-0 win over Everton that he is "not super-confident" Flamini will still be at Arsenal next season.

Wenger expects the matter to be resolved early this week, but it is understood Flamini said his goodbyes to some staff as he left the car park after Sunday's win.

"Frankly, I don't know," said the Arsenal manager when asked about Flamini's future. "But if you ask me was I overall super-confident, I would say no.

"He has an offer on the table which is valid until Monday, then we will see.

"I am not confident, but also not worried. The situation is not in my hands.

"We have done what we had to do, it is now down to him to make a decision."

Wenger insists the matter has to be resolved one way or another.

"At some stage you have to make a decision and if he goes we have to look at our options," said the Arsenal boss.

"We can't wait until July. You could lose players if they come on the market.

"My ideal solution is that he stays, so I am not happy if he goes - but we've done everything we can."

Another player whose future could be resolved in the summer is veteran midfielder Gilberto, while goalkeeper Jens Lehmann is set to leave following an emotional farewell at the Emirates when the German came on as a second-half substitute.

Wenger said: "I would like Gilberto to stay, but I will have to sit down with him to see what he wants to do, and we go from there.

"He is a fantastic guy with a professional attitude. We won trophies with him and Jens because they are fantastic people."

Wenger added: "We will keep 95 per cent of the squad, but we might lose one or two."