Rangers missed converting first-half authority into three points as Aberdeen snatched a 2-2 draw at Pittodrie in the Scottish Premiership. Aberdeen showcased their very poor form initial half an hour as they fell behind two goals to Rangers. Scott Arfield and former skipper Ryan scored in the 18th and in the 30th minute respectively. Jon Gallagher of Aberdeen halved the lead in the 39th minute and Andrew Considine levelled in the 48th minute.