Celtic and Aberdeen are preparing to square up in the Premier Sports Cup semi-final this weekend after both side’s unbeaten starts to the Scottish Premiership season. With nine victories each and an entertaining 2-2 draw at Parkhead between them, Celtic lead the Dons on goal difference heading into a winner-takes-all clash at Hampden. On Wednesday night, the Bhoys’ comfortable victory over Dundee was coupled by Aberdeen’s win over Rangers at Pittodrie, widening the gap between first and third to nine points. Now, the focus at Lennoxtown will shift to Premier Sports Cup duty, with the prize at …