Nolan has been heavily linked with a move to join Sam Allardyce at Sunderland but that deal no longer looks like happening. Instead he looks like following recent Celtic signing Carlton Cole in going from West Ham to Galsgow via the free agent step.
It is being reported across the media this morning, with The Guardian reporting the deal as well on the way. Rangers boss Warburton is believed however to want him on trial first before agreeing to bring him in.
Nolan has been a free agent since leaving West Ham in August by mutual consent after losing his regular starting place under new boss Slaven Bilic.
He has since trained with Leyton Orient but is now believed to be on his way to join the Scottish Championship side.
Rangers are flying high in Scotland's second tier and Nolan would be a marquee signing to help them on their way. The Rangers of old would have certainly made this signing, but it will be interesting to see just how they structure the deal concerning Nolan's likely high wage.
Rangers fans will however know that Nolan is a top class signing for the level they are currently at. If he arrives then it is hard to see any team stopping Rangers heading back to the Scottish Premiership this season.