Arsenal manager Mikel Arteta has said that Kieran Tierney's knee injury "does not look good", with the defender set to see a specialist, while Thomas Partey's fitness is also a concern.

Tierney played twice for Scotland across the international break, but did not feature for the Gunners as they slumped to a 3-0 loss at Crystal Palace on Monday.

Following the defeat at Selhurst Park, Arteta confirmed that the left-back had felt a problem that will be further assessed in the week, though the initial prognosis is not positive.

"He came back from international duty and felt something wrong in his knee," Arteta told BBC Sport.

"There is some damage there. We will hopefully know more on Tuesday but it's not looking good.

"He is seeing the specialist on Tuesday and we will know more about the extent of the injury but the feeling that he had wasn't really positive and what the scan showed either. We have to wait and see what happens."

Arsenal potentially lost another key player to injury as they head into the run-in, with Partey going off with an apparent hamstring injury.

"I don't know but he felt something in the same area that he got injured previously so that's a big concern," Arteta told his post-match news conference.

Arsenal's defeat leaves them in fifth on goal difference, though they do have a game in hand on fourth-placed Tottenham.