Reading boss Paul Ince has provided an injury update on Ghana defender Andy Yiadom.
The Ghana international suffered an injury in Reading FC 3-1 win over Huddersfield Town on Saturday.
The defender started the game but had to make way for Tyrese Fornah in the 65th minute due to an injury.
Tom McIntyre headed Reading in front before an own goal and a Yakou Meite goal from the bench consolidated the points, despite a consolation strike from the visitors in stoppage time.
"Yids (Andy Yiadom) is with the doctor now. We can’t afford to lose him, that’ll be another massive blow to us. We’ll find out the diagnosis tomorrow but it’s not looking good," he said.
Reading remain third in the Championship table and just three points off top spot following the win over Huddersfield.
They host second-placed Norwich City at the SCL Stadium on Tuesday night and Yiadom could be unavailable.