Newcastle United have announced that Tim Krul will see an ankle specialist next week having sustained an injury in the Europa League.
The goalkeeper was on crutches after the Magpies' 1-0 win over Metalist Kharkiv yesterday following a challenge from Jonathan Cristaldo.
A statement on the club's official website said: "Newcastle United can confirm that Tim Krul was assessed by club medical staff on Friday and sent for a scan on Friday afternoon after sustaining an ankle injury in Thursday night's Europa League match against Metalist Kharkiv in the Ukraine.
"Krul is now scheduled to see an ankle specialist on Monday for a further assessment, after which time the Club should be able to provide another update."
The injury means that the Dutchman is unlikely to be fit for Sunday's clash against Southampton.