West Brom manager Roy Hodgson has hit out at Aston Villa's Alan Hutton, labelling his tackle on Shane Long as 'vicious'.
Long is facing a lengthy spell on the sidelines after damaging knee ligaments following Hutton's lunging first-half challenge.
Albion expect the results of the scan on the Republic of Ireland international early next week but Hodgson is fearing the worst.
The Baggies boss believes Long was lucky not to suffer a broken leg in the challenge, however, he remains 'angered' by the tackle.
"I don't think it will be good news when the scan comes through because it was such a vicious challenge," said Hodgson.
"I'll remain optimistic but I'll be surprised if the doctors come to me at the beginning of next week and say Shane is perfectly okay.
"I suppose he has got to consider himself lucky he hasn't got two broken bones in his leg but I would think it is a serious knee injury."
Hodgson added: "I was disappointed with that challenge by Hutton and not only saddened by it, but angered by it.
"I don't think there is any room in football for those type of challenges on the field and overall the game wasn't like that."