Cameroon international Alex Song is the latest player to commit his long-term future to Arsenal.
The 20-year-old, who initially joined the Gunners on a season-long loan switch from Bastia in 2005, made his move to Arsene Wenger's side permanent two years ago.
He played 12 games for Charlton Athletic during a loan spell at The Valley in the 2006-07 campaign and has made 30 first-team appearances for Arsenal.
A brief statement on the Gunners' official website read: "Everyone at the club is delighted that Alex has signed a new contract and looks forward to him being part of the first-team squad in the forthcoming years."
Meanwhile, Croatia manager Slaven Bilic believes Eduardo da Silva could have recovered from the double compound leg fracture he sustained against Birmingham City in February in time to take part in Arsenal's pre-season programme.
Bilic confirmed after his side's Euro 2008 win against Austria: "He is recovering and may even join Arsenal for their preparations."
The 25-year-old Eduardo recently said: "I am returning to Europe from Brazil at the beginning of August, perhaps even the end of July.
"Doctors tell me by then I will be fully recovered and able to play football again. I hope so too. I'm feeling well and my rehabilitation is going better than I would ever have hoped."