Celtic are in the middle of preparations for a huge week in store that could Brendan Rodgers’ men on the brink of being crowned Scottish Premiership champions. Rangers travel to Parkhead on Saturday, and a victory for the hosts could put the title’s destination beyond doubt with fixtures against Kilmarnock and St Mirren to come. In the scenario of a draw, Celtic would remain in the driving seat by retaining parity; meanwhile, the permutations of an away win don’t need a lengthy explanation. One other detail of the weekend that fans may have seen on the reigning Scottish Premiership champions’ …