Tariqe Fosu could miss Charlton’s promotion run-in after pulling his hamstring in the win over Portsmouth.
The Addicks winger was forced off in the 56th minute at Fratton Park.
Lewis Page was also substituted with a suspected achilles problem.
Charlton caretaker boss Lee Bowyer said: “I know Tariqe has done his hamstring. I don't know how long it will be. He’ll be a big loss.
“Lewis Page, I’m not too sure on him, it’s something to do with his achilles, but I don't know how long they’ll be out for.”
The two injuries were the only negatives in a faultless Charlton display today.
The striker has been given a fresh start under Bowyer after being frozen out during Karl Robinson’s reign.
Bowyer added: “His work-rate for the team [has always been there], the ball just never fell for him.
“Today was his first chance he’s had in front of goal in all the time I’ve started him.
“So I’m over the moon for him, as a striker all you want to do is score goals.
“I’m delighted. One chance and he scores. That’s why he was playing.”
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