St Mirren and Rangers drew 1-1 in Sunday's William Hill Premiership game.
Jonah Ayunga fired Stephen Robinson's men ahead before the break but they were denied their first league win of the season when Findlay Curtis equalised in 78 minutes.
It was a third successive 1-1 draw in the Premiership for Russell Martin's side, who travel to Belgium to play Club Brugge in the Champions League play-off on Wednesday.