Ryan Fraser will undergo another scan this week as Newcastle United seek clarity on his hamstring injury.

The Scotland international picked up the injury during recent 1-0 victory over Wolverhampton Wanderers in the 13th minute.

Magpies head coach Eddie Howe said on Friday that Fraser’s initial scan showed a “very small problem”, suggesting the injury wasn’t “too bad”.

However, ahead of Wednesday’s Premier League fixture with Crystal Palace, Howe confirmed another scan has brought conflicting opinions.

The 44-year-old said: “I think with Ryan the plan is to have another scan this week, I’m not sure on the day, to see where it is.

“We had an initial scan and had two conflicting opinions, so we’re re-scanning.”

Howe revealed no fresh injury concerns for Newcastle, with Kieran Trippier and Callum Wilson still sidelined.

Both players will step up their returns this week but won’t feature against Crystal Palace or Norwich City.

“They will definitely be stepping it up,” Howe said on Sunday. I don’t think they will be with us, training with the group.

“There will definitely be a handover period for Kieran (Trippier) where he will go with our sports science guys in the near future but that hasn’t happened yet.

“Both players are still with physiotherapists.

“Neither player has really done too much on the grass yet but they are working towards that.

“Thankfully the team is in good form so we are in a position where we don’t have to rush them back but we still have enough games to see them before the end of the season.”

Eddie Howe reveals potential injury setback for Newcastle United star