first_imgArsenal have suffered a massive blow after defender Sead Kolasinac was ruled out for between eight and 10 weeks.The German defender sustained a knee problem in the pre-season clash against London rivals Chelsea earlier this week.Kolasinac, 25, had to be helped off after clashing with Victor Moses as the Gunners beat their London rivals on penalties after a 1-1 draw after 90 minutes.The Gunners released an injury update on their official website that Kolasinac has indeed sustained an injury to his left knee and faces a lengthy stay on the sidelines.They also provided an update on Welsh midfielder Aaron Ramsey after he withdrew from the Chelsea clash with a tight calf.Tammy Abraham, ChelseaChelsea hat-trick hero Tammy Abraham hopes for more Andrew Smyth – September 14, 2019 Tammy Abraham hopes this season will be his big breakthrough at Chelsea after firing his first hat-trick for the club in Saturday’s 5-2 win at Wolves.But the Gunners say the Welshman is aiming to return to training next week.Arsenal are currently in action against Lazio in their final Pre-season friendly. They begin Premier League campaign at home to Manchester City next weekend before traveling to Chelsea for their first game on the road.Arsenal defender Sead Kolasinac is out for up to 10 weeks after suffering an injury to his left knee:— Sky Sports Premier League (@SkySportsPL) August 4, 2018last_img