Swansea City interim boss Alan Sheehan says they are awaiting the results of a scan before determining whether Myles Peart-Harris will be fit to face Middlesbrough on Saturday.

The Brentford loanee was forced off with an injury just before half-time during Swansea's 0-0 draw at Preston North End on Tuesday night, and Sheehan admits he's still not sure of the extent of the issue.

"He's gone for a scan," he said. "We're waiting on the results of it, hoping it's not too serious because gives us something slightly different to other players in the squad. Sign up to our Swansea City newsletter here.

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"But we'll have to wait and see. I can't really give too much on that right now. Hopefully we'll know more in the next 24 hours.

"We just have to wait for the extent of what the scan says."

Peart-Harris found himself on the end of what appeared a poor challenge from Brad Potts before he was eventually withdrawn on 41 minutes, and it's not clear if that tackle was in any way connected to the winger's current injury.

"It's more in the back," Sheehan added. "We don't know if there was contact yet. But yes, it's disappointing really because he gives us something different physically and attacking wise to some of the other individuals.

"So whoever comes in and fills that spot will have to work differently."

Eom Jisung replaced the 22-year-old on the night, and might well be called on again if Peart-Harris is unfit to face the Teessiders at the Swansea.com Stadium on Saturday, with Josh Ginnelly still seemingly not quite firing on all cylinders himself.

Ginnelly made his first team return off the bench in the FA Cup defeat to Southampton in January, his first appearance since suffering a ruptured Achilles back at the beginning of last season.

He has since made two further substitute appearances, but wasn't included in the matchday squad for the trip to Deepdale, with Sheehan seemingly keen to hold some degree of caution in bringing him back into the fold.

"He's been out for a long time," Sheehan said. "An Achilles rupture is probably one of the worst injuries that you can have and sometimes it takes a certain amount of time.

"But then when you're coming back you have other little niggles that are unexpected, but still should be expected because you're building up your body.

"I think we've got to get Josh to a place where he's consistently hitting that level, because he has the profile to be a very good winger.

"We've got to find a way where we can see that consistently."

"I think he has the attributes," he added. "We've seen flashes. Now it's getting to a point where we can build the foundations and he is so robust he can go bang, bang, bang. That does take time.

"We feel he can impact the game so we've got to keep building them up and seeing it because he has got quality. He's got pace on the sides and now it's just about getting him to that level where he's confident in himself that he can be the best Josh Ginnelly for this football club."

Youngster Sam Parker, who was handed his debut by Sheehan during his last interim spell, appears to be in a similar boat. The 18-year-old has made four appearances from the bench this season, having previously worked his way back from a hamstring problem.

However, he hasn't been included in the last three matchday squads.

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"Sam's had a difficult year in terms of injuries and I think when you're at that age and you've got that kind of potential, and because of how he is athletically, I think it's important that you have to protect it.

"He broke down a few times coming back and now he's got to a place and probably needs more game time with the 21s really before he makes an impact. Determining on how quickly he makes up that few per cent we're looking for, he will be back and training with us.

"We don't want to rush him. He's a young lad, who was thrown onto the scene by me from nowhere, but I think as long as we can protect him and get to place where he plays consistent football then we'll see the best of him."

Meanwhile Kristian Pedersen is still some way from contention, as he continues his rehabilitation from surgery to address a hamstring issue.

"He's a good few weeks away still," Sheehan said. "He had an operation. So it's still a good bit away."