IT HAS been a long time coming, but Scotland has a truly competitive Premiership title race in 2020. After Rangers’ 2-1 win against Celtic at Parkhead at the end of the year, the reigning champions have a fight on their hands. Celtic fans won’t be feeling too comfortable, but the rest of Scotland will probably welcome the prospect of an exciting finale to the season. There’s a little déjà vu about the situation. Last season, Rangers went into 2019 feeling rather chipper, but the challenge fizzled out and they finished nine points behind Celtic. “A reality check,” their former chairman called it. This somehow feels different, Rangers have lost just once this season in the Premiership (to Celtic 1-0), and like Celtic, they’re still…