Mathieu Debuchy will find out the extent of the damage caused by a dislocated shoulder and could face up to three months out, reports The Mirror.
The Arsenal defender has only just recovered from ankle ligament damage but is facing at least six weeks out after suffering the injury against Stoke City last weekend. Debuchy will see a specialist today and will learn whether or not he requires surgery.
Should there be significant ligament and/or muscular damage he could be out until late April, essentially ruling him out for the rest of the season and capping a frustrating first year as an Arsenal player.
Debuchy joined Arsenal from Newcastle United last summer for a fee estimated at £12 million as a direct replacement for Bacary Sagna. The France international was considered by some as an upgrade on his compatriot but an unfortunate ankle injury cut his impressive start short.
The 29-year-old has added to Arsene Wenger's defensive problems this season with Laurent Koscielny also struggling with long-term ailments. Another extended period in the treatment room should guarantee the signing of a new defender in the January transfer window.
Wenger has been linked with a move for Loic Perrin in recent weeks but Arsenal fans will be hoping for a longer term addition such as Ipswich Town's Tyrone Mings. However, with the Tractor Boys chasing promotion they are unlikely to let their star defender leave at this midway point.
Winston Reid is reportedly top of Wenger's wanted list and West Ham could be forced to cash in as the New Zealander will be eligible for a free transfer at the end of the season. Reid would come to the Emirates with plenty of Premier League experience but would be a short-term solution to their problems.
Although Debuchy's injury is bad news for Wenger, there is hope that Arsenal's trouble with injury is getting better. Aaron Ramsey and Mesut Ozil returned to the squad against Stoke City while Jack Wilshere, Mikel Arteta and Danny Welbeck are recovering from their respective injuries well.