Former Premier League referee Dermot Gallagher has suggested it’s Rangers and not Celtic who have the right to feel aggrieved about referees this weekend. The self-confessed Celtic supporter, who spent almost 30 years refereeing south of the border, was assessing the Scottish Premiership’s big VAR flashpoints. In a weekend of controversy, Celtic blew the chance to go above Rangers in the Scottish Premiership table after being defeated by Hearts. This was after Rangers stumbled to a 2-1 home defeat against Motherwell which was the best part of 27 years in the making. Rangers and Celtic managers…