William Gallas,
the former Chelsea defender.
William Gallas, who picked up a hamstring problem during his
side's clash with Plymouth in the third round of the FA Cup last
weekend, is likely to be out for three weeks.
"Kolo and Denilson will be back available," Wenger confirmed on
the club's official website.
"However unfortunately we have lost William Gallas with a
hamstring problem."
He continued: "We lost Silvestre too with a thigh problem last
week as well. So we have lost two players from the game on Saturday
but we have gained two back.
"I think Gallas and Silvestre will be out for three weeks."