Newcastle winger Hatem Ben Arfa suffered a broken leg in the 2-1 defeat at Manchester City, the club have confirmed.
The 23-year-old, on loan from Marseille, sustained the injury in a hard challenge from Nigel de Jong just three minutes into the game at the City of Manchester Stadium on Sunday.
Ben Arfa was given oxygen on the pitch before being stretchered off and taken to hospital for a scan.
And a statement released on Newcastle’s official website read: “X-rays taken (Sunday) afternoon have confirmed that he has suffered a broken tibia and fibula of his left leg.
“He will undergo surgery (Monday) morning.
“Everyone connected with the club sends Hatem their best wishes for a speedy recovery.
“At this stage no time limit has been put on his expected return date.”
Magpies manager Chris Hughton was unhappy with the tackle by De Jong, saying afterwards: “Everyone will have their own opinion, but it was a tackle that did not need to be made.”