LIAM HENDERSON has handed Celtic a pre-season injury sweat after ending his loan spell with Rosenborg on crutches.

The Parkhead midfielder is on loan with the Norwegian side until the weekend when he is due to return to Glasgow.

But he faces a scan to find out the extent of a knee injury after hobbling out of Rosenborg's 7-1 Norwegian Cup win over Tromsdalen and leaving the ground on crutches.

Rosenborg manager Kare Ingebrigtsen said: "He took a knock on his leg and couldn't continue.

"He goes back to Celtic after this weekend and it seems unlikely he will able to play any part in his final game for us against Molde this weekend.

"We will have to wait until he has his tests and our doctor, Jon Olav Drogset, will discover the extent of his injury."

Henderson's stint in Norway has been disappointing after getting off to an excellent start by netting three goals in his first five games.

The Scotland Under-19 internationalist has been limited to late substitute appearances and has failed to start a Norwegian league match.