Middlesbrough manager Tony Mowbray is waiting to learn the extent of a knee injury suffered by Matthew Bates against Ipswich Town.
The Boro captain was replaced in the first half of the 1-1 draw at Portman Road on Tuesday evening after falling awkwardly following a challenge from Michael Chopra.
Bates will undergo a scan to determine the severity of the problem with Mowbray keeping his fingers crossed it is not serious.
"We do have a concern with Matthew's injury but we don't want to talk about it until we've had a scan," said Mowbray.
"Let's hope it's not such a bad injury, but we'll wait and see."
The 25-year-old, who came through the ranks on Teesside, has been a virtual ever-present for Middlesbrough this season, making 42 appearances and scoring twice.