Old Firm ref rues penalty gaffe
With Rangers leading through a Kenny Miller goal, Thomson ignored appeals for a spot-kick in the 12th minute when Shaun Maloney went to ground in the box following a challenge by Davie Weir.
Thomson did award the Hoops a penalty in the 25th minute after Sasa Papac tripped Parkhead debutant Zheng Zhi and Aiden McGeady scored from the spot.