The day is upon us. Celtic travel to Ibrox today to take on Rangers in the biggest match of the Scottish Premiership season so far. The Bhoys know defeat would represent a bitter blow to their title race bid. However, they will have self-confidence heading into the match having already defeated Rangers twice this term. Brendan Rodgers has been boosted by the return to training of Luis Palma and Callum McGregor after injury layoffs, giving him a clean bill of health for one of the first times this season. Getting the team selection and tactics correct is so important in this fixture. Throughout…