The 28-year-old came on as a substitue in the friendly on Wednesday night and could make a permanent return to Glasgow in the summer.

Klansic has recovered after having to undergo a kidney transplant 11 months ago but so far German giants Werder Bremen have yet to offer him a new deal, meaning he can move for free this summer.

Klasnic revealed former Rangers and Croatia striker Dado Prso has been advising him on life in Glasgow and that there has been interest from across the city from Celtic.

He told the Evening Times: "I have had contact from a few big teams. Both of the Glasgow clubs, and Rangers have been very keen.

"Of course I know all about the club after Rangers played Bremen a few weeks ago in the Uefa Cup, although I didn't play in those games because I was injured.

"Dado has spoken to me many times about Rangers and I know what a fantastic club it is - he has been here with us this week at the hotel and you can see how much he loves Scotland.

"It's a great club with an excellent stadium and amazing fans.

"I will see what happens with my future, as there has also been contact with me from German clubs.

"Bremen have said they will talk to me about my future and a new contract, but there has been nothing so far."