Alex Oxlade-Chamberlain
Alex Oxlade-Chamberlain will be out with a knee injury against Manchester UnitedGetty

Arsenal midfielder Alex Oxlade-Chamberlain could be out until the end of the next international break after sustaining a knee injury against Barcelona which forced him off the field. The midfielder clashed with Javier Mascherano in the first half and was unable to carry on in the second period after the break.

The Mirror reports that the player has had scans on his knee and Arsenal are fearful that he may have sustained ligament damage, which will put his participation in the European Championships in 2016 under doubt. He will be definitely out for their clash against Manchester United over the weekend, but Arsene Wenger will be hoping that he will be available for their title run until the end of the season.

Missing the internationals against Germany and Netherlands next month would be a major blow as Roy Hodgson will be looking to have his entire squad fit for the fixtures to choose his best eleven. The 22-year-old has already missed a major part of the campaign through injury and his form of late will put question marks over his future at the club.

Joel Campbell has already stepped up to the task and is expected to slot back into contention in the absence of Chamberlain, with Theo Walcott and Danny Welbeck also vying for a place down the right. The Gunners have all but recovered from their injury problems, with only Jack Wilshere and Santi Cazorla on the sidelines.

Wilshere is expected to be back next month, while Cazorla has revealed that he wants to get back for the second leg against Barcelona at the Nuo Camp. The Gunners are trailing the tie 2-0 and have all but resigned to being knocked out of the round of 16 stages for the seventh year in succession. Chamberlain played an important part in the fixture, keeping Neymar down the right, but failed to find the back of the net, with the goal gaping at his mercy in the first half.