Aberdeen’s thrilling fightback away at Celtic has Rangers legend Barry Ferguson fearing the worst ahead of Wednesday’s trip to Jimmy Thelin’s Scottish Premiership pacesetters. And who can blame him? After losing at Kilmarnock and creeping to an unconvincing 2-1 win over St Mirren on Sunday afternoon, Ferguson is dreading the idea of Robin Propper going up against Aberdeen’s jet-heeled frontline at Pittodrie. £1.5 million summer signing Propper struck up a fine understanding with Rangers teammate John Souttar during a run of five consecutive clean sheets in September and October. But with Soutt…
