Philippe Clement is talking a big game ahead of visiting Celtic Park next weekend. That’s no surprise, of course. Celtic fans have watched a litany of figures from Ibrox hype up their chances in the derby in recent years, only to see them left disappointed more often than not. Clement has yet to beat Celtic since arriving as a manager in Scotland. He’s had four chances but Celtic showed why they are the best team in the country with consistent derby performances last season. Despite that, the Rangers boss claimed after beating Ross County on Saturday that they were ‘really close’ to the champi…