Rangers will face St Mirren in their semi-final tie of the Challenge Cup on 28th November.
The Gers made it to the last four of the domestic competition after they got the better of Livingston 1-0 in their quarter-final encounter courtesy of a Nicky Clark strike.
The semi-final between Rangers and St Mirren was originally scheduled to be played on 14th November.
But it has been moved to 28th November for television purposes and also to avoid a Championship clash between the Gers and Dumbarton on the original date.
Rangers' home Ibrox will host the game between the two sides.
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Mark Warburton took the reins of the side earlier this summer and he has guided them to a scintillating start in the Championship as they remain unbeaten in the league after the first ten games.
They have already built up an eight-point lead over second placed Hibernian in the title race as they attempt to win promotion into the Premiership.
Rangers will also be favourites to win the Challenge Cup this season.
