QPR fear Amadou Mbengue faces a long spell on the sidelines after the defender was stretchered off with a knee injury during the 4-1 win against Derby.

Mbengue, 24, is being assessed, but head coach Julien Stephan has admitted that the signs are not good.

"We don't know exactly what the situation is with his knee, but it's never good to see a player like this come off with a lot of pain. It's never a good sign," Stephan told BBC Radio London.

"Normally, when you play a game like this and you score four, you are very happy and very positive – and I have to be very positive about the way we played.

"Unfortunately we had the Amadou situation and that's why it's a mix of feelings for us."