Rangers boss Stuart McCall hopes injured Newcastle winger Shane Ferguson could play a surprise role in the club's play-off bid.

The Northern Ireland cap was sent north by the Magpies as part of a five-man package on the final day of the January transfer window.

But Gers missed the fact he was carrying a long-term knee injury when they failed to carry out a medical.

Ferguson, 23, only checked in to the club's Murray Park training base on Monday after he was finally given the green light to resume action.

Now McCall has revealed the Derry-born wide man could make his Gers bow as the Ibrox side look to climb back to the Premiership through the play-offs.

The Light Blues boss said: "I was really pleased yesterday when I saw him training. When you have been out for so long with a knee ligament injury, it's not just the physical aspect but the mental one.

"But he was really positive. I've had a wee chat with him and he's desperate to get involved.

"He's a wee bit away from match fitness and won't be ready to play in the next week or two because he's been out too long.

"But he is mentally in the right place, as in he is here to help, and he could be a welcome addition for the back end of the season."

The deal which saw Ferguson, Haris Vuckic, Gael Bigirimana, Kevin Mbabu and Remie Streete swap St James' Park for Ibrox has proved controversial.

So far, only Vuckic has played regularly. Street picked up an injury on his debut against Raith and has not been seen since, while the other three arrived packing injury and fitness issues.

But there was another sting in the tail for the frustrated Gers faithful when they learned the deal included a clause which meant their club would have to give Newcastle owner Mike Ashley a £500,000 cheque if they won promotion.

McCall, though, joked he would be happy to hand over the cash if it meant he had succeeded in reclaiming Gers' top-flight slot.

He said: "It was a surprise to everyone when the news about that came out, because it's quite a lot of money, especially when only one of them is playing.

"But if it was me - and it's not because it's not my money - I'd love to give Newcastle £500,000 because that means we have got promotion."

Ashley's standing in Govan took another pounding last week, too, when it emerged the club's iconic trademarks and badges had been registered on a government website in the name of his Sports Direct firm.

The billionaire tycoon loaned the previous regime running the club £5million in January and took security over a number of Rangers assets - including the logos - in return.

The new Rangers board have now probed the affair and reassured fans they still remain the rightful owner of the badges - but the row had worried some fans Ashley may now scupper any potential deal for Vuckic out of spite.

The Slovenian has been the sole positive from Rangers' relationship with the Newcastle owner after scoring seven goals in just 12 games since moving north.

But McCall is hopeful there will be no further repercussions, saying: "From what I read from Paul Murray, they are going to have a meeting with Sports Direct in the near future. I'm sure there will be some good talks come out of that.

"Haris has another year left on his Newcastle contract. For the here and now he is trying to get us promotion. He is still a Newcastle player but I don't think (the badge row) would have any bearing on (any potential Rangers bid).

"I don't think there has been any great falling out with the club and Newcastle whatsoever."

Gers bounced back from last week's 3-0 defeat to Queen of the South by sticking four goals past Raith on Sunday.

They now face basement boys Livingston on Wednesday but McCall expects another difficult match at the Energy Assets Arena.

He said: "I genuinely think this could be one of the toughest games we've got left.

"I saw them win last week at home to Falkirk and you can tell they are a team that has got everything to play for. We have got to match their desire and hopefully our quality will take over."

Meanwhile, skipper Lee McCulloch is clear of suspension - but McCall says he is still unsure if he will recall the defender for the trip to Livingston.

McCulloch was handed a two-match ban after catching Hearts striker Osman Sow with a high elbow but McCall is considering leaving his captain on the sidelines.

Seb Faure (knee), Richard Foster (hernia), Steven Smith (back) and Jon Daly (knee) remain on the sidelines with injured Newcastle loanees Mbabu (fitness issues), Streete (ear infection and muscle strain), Bigirimana (infection) and Ferguson (knee).

Provisional squad: Bell, Wallace, McGregor, McCulloch, Mohsni, Zaliukas, Shiels, Clark, Law, Hutton, Miller, Boyd, Aird, Black, Murdoch, Templeton, Robinson, Walsh, Simonsen.