Arsenal defender Johan Djourou fears his knee injury could keep him out for the rest of the season.

Djourou limped off at Newcastle and will undergo further tests today but it is feared he has damaged ligaments.

That could leave Djourou facing a lay-off which could mean leave a huge question mark over the rest of his season.

Swiss centre half Djourou was out for almost all of last season as he has a long-standing knee problem.

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