Arsenal defender Koscielny to miss three weeks

Arsenal defender Laurent Koscielny will be sidelined three weeks with a thigh injury, manager Arsene Wenger said.

Koscielny limped out of Wednesday's 1-1 draw at Everton in the English Premier League.

"It is a muscular problem, a thigh problem," Wenger said. "That is normally three weeks."

Koscielny has played 12 matches, including 10 starts, in all competitions this season.