There’s confidence around Celtic right now and most supporters are relishing the chance to go up against Rangers in the Scottish Premiership on Sunday. A lightning start to the season, a strong end to the transfer window and an exciting Champions League draw have all added to the cliched ‘buzz’ about the place. In contrast, Rangers have flirted with a lot of bad feelings over the summer including a European qualifying exit and stadium problems. So the two teams coming together tomorrow will be very interesting. That doesn’t mean I think it’ll be an easy game. The Ibrox side remains proud and c…