Ryan Jack could miss the rest of the season for Rangers after seeing a specialist for his calf injury, according to Noel Whelan. 

The former Aberdeen striker, speaking exclusively to Football Insider, suggested the midfielder may need surgery to sort the issue out.

Speaking at the pre-match press conference, Gary McAllister confirmed Jack had been to see a specialist over the international break to assess his niggling calf injury.

The 29-year-old has been missing since limping off against Dundee United in late February.

He suffered a similar issue back in September which kept him out for a handful of games.

Whelan admitted McAllister’s update was worrying news for Rangers fans.

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However, he insisted there was no better time to address the issue than just before the summer break.

Asked if he thought Jack would be out for the season, Whelan told Football Insider assistant editor Russell Edge: “Yeah, absolutely.

“If you’re seeing a specialist, that only says to me you’re trying to get it repaired. Possibly get an operation done on it so he doesn’t have these reoccurring problems.

“There’s no better time to go and get it done now when you’re coming into the end of the season. If you haven’t got this problem sorted out, it gives you the most possible rest time and recuperation to get back before anybody else to rehabilitate yourself.

“This might give him the chance to get it sorted now in the summertime. However, he’s going to have to work hard. There’s not going to be much of a break if he wants to come back and get fit.

“He’s going to come back a lot, lot earlier. He’ll start rehab very quickly and swiftly to give him the best possible opportunity to get back into that team.”

In other news, a big-name Rangers star has been tipped to sign shock new contract on one condition.