Arsenal have confirmed Mohamed Elneny is set for an extended spell on the sidelines as a knee injury has proven to be more serious than initially feared.
On Tuesday afternoon (Otherwise known as January transfer deadline day), a statement via the club's official website read: "Following an injury sustained in a recent training session, subsequent assessments have confirmed that Mohamed Elneny has a significant injury to his right knee.
"Mo has had successful surgery in London and will be ruled out for an extended period of time. A more detailed timescale will be established once the early stages of rehabilitation have been completed. Everyone at the club will be offering Mo all the support he needs and working hard with him so he can return to action as soon as possible."