The fixtures just keep on coming for Rangers as the side travel to Perth on Sunday for a Scottish Premiership test against Craig Levein’s St Johnstone. After Wednesday’s 3-1 triumph over relegation strugglers Ross County, Rangers are now level on points and goal difference with title rivals Celtic at the top of the league. The Hoops have scored more goals so that has them just ahead but if the Light Blues were way more clinical against the Staggies having had a total of 23 shots on target, things could have been different going into this weekend. Celtic play Kilmarnock at home today so the pre…