Rotherham striker Jamie Proctor has gone to hospital after suffering a serious knee injury in the defeat at Charlton.
Proctor sustained the problem in the build-up to the Addicks’ second goal, after landing awkwardly when he appeared to be fouled by Chris Solly.
The referee Trevor Kettle played on, despite calls to stop the game, and Addicks went on to score their second through Josh Magennis.
Boss Paul Warne said he will go and visit his striker in hospital and expects him to be on the sidelines for some time.
“I don’t think it was a foul, I will watch it back,” Warne said. “I knew it was something serious because he was writhing in pain.
“I just thought maybe the ref, if you see the player in that amount of pain you have to get the medical team on quick.
“He has gone to hospital, he has done something to his knee. He was in a lot of pain, I would expect him to be out for some time.”
The Millers suffered their third defeat from four league games in a disappointing showing against Karl Robinson’s side, who won it thanks to Patrick Bauer’s header and Magennis’ controversial second.