Derby County could be without Claude Davis for Saturday's clash with Tottenham after the defender was sent to see a specialist concerning a persistent knee problem.

The £3million summer signing from Sheffield United has been troubled by the problem for weeks, but Jewell is hoping the specialist does not diagnose a serious problem.

"Claude will see a specialist regarding his knee problem and Pearo has had a few problem with his groin and hamstrings," Jewell told the club's official website.

"That's why you hope the players on international duty come back fit and well.

"It's a nightmare time because you're waiting for Thursday afternoon or Friday morning and you hope all the international players return fit and well."