Arsenal's Kolasinac set for lengthy spell on sidelines

Arsenal defender Sead Kolasinac will be out of action for eight to 10 weeks after suffering an injury to his left knee, the Premier League club said on Saturday (AEST).

Sead Kolasinac in action for Arsenal Source: Getty Images

The Bosnia international was forced off during Thursday's pre-season win over London rivals Chelsea in Dublin after a clash with Victor Moses.

Wales midfielder Aaron Ramsey missed that game with a tight calf and will aim to return to training next week, the club added.

Arsenal start their Premier League campaign at home to Manchester City on August 13.