The Mirror says Wenger last night clinched an £11m deal with Marseille for Nasri - and paved the way for Alexander Hleb to join Inter Milan.
Nasri, 20, has undergone a medical, agreed a four-year contract and will be announced an Arsenal player once he is released from a France training camp to put pen to paper.
Last night a source close to Marseille said: "The deal has been agreed. The medical took place on Wednesday, he agreed to sign on Thursday and the only hold up is that he is with the French squad at the moment."
Wenger is a big admirer of Nasri and has been tracking him for months after French scout Gilles Grimandi strongly recommended him.