The Gunners had undertaken a covert operation to land the playmaker that began far in advance of his late move to the Emirates Stadium for £40 million.
|OZIL SIGNS FOR ARSENAL
|14/1||Arsenal are 14/1 with Coral to beat Sunderland 3-0
And now Ozil's Germany and former Madrid team-mate Khedira has confirmed his prior knowledge of the transfer, whilst also expressing regret at los Blancos' decision to sell the former Werder Bremen star.
"I was informed two or three days ago, that's why it came as no surprise for me," he told reporters on Tuesday.
"Personally, I regret that he leaves. It's a loss because I think that Mesut can make the difference."
Ozil left the Santiago Bernabeu just hours after world record signing Gareth Bale was unveiled by the Spanish club, and departs having scored or assisted 108 goals in 159 appearances.