Ange Postecoglou has name-checked his time at Celtic with a brilliant reminder of the main reason he loved beating Rangers during his time in Glasgow. The Tottenham manager was much loved (and still is) by the Celtic supporters over the two seasons he was in charge. And even now, in the midst of preparing for a huge game against Arsenal today, the former Hoops gaffer cited his experiences in Paradise as a perfect example to tell the assembled journalists that winning the Glasgow Derby with Celtic means he has a perfect understanding of what it means to come out on top in these huge games. Post…