Arsenal will welcome Samir Nasri as their new signing this week.

The Observer says Nasri's transfer to Arsenal will be formally completed this week. Marseille agreed a deal worth a potential £13.3m in June for the 20-year-old attacker, but asked Arsenal not to make the transfer official until this month for accounting purposes.

Though Nasri announced the move on his website in mid-June, his agent had to retract the statement the next day.