By Chris Harris
Thomas Vermaelen will be sidelined for "two to three weeks" after suffering a calf injury during the North London derby.
The Belgian defender pulled up after 19 minutes of the 2-1 defeat against Tottenham on Wednesday night and was immediately substituted.
Vermaelen has only missed one Premier League game this season - and that was due to suspension - but he is certainly out of this weekend's trip to Wigan and the home game against Manchester City on April 24.
"Certainly it is a calf strain. [He will be out for] two to three weeks," confirmed Arsène Wenger after the Tottenham game.