Celtic travel to St Johnstone tomorrow evening looking to maintain their perfect Scottish Premiership start under Brendan Rodgers. Rodgers will reveal more about availability at some point today in his press conference, where there are bound to be questions over fitness and potential rotation amid the Bhoys’ trip to Borussia Dortmund next Tuesday. The mood music from the Celtic camp has been calm ahead of facing managerless St Johnstone after they parted ways with Craig Levein last week. Callum McGregor has indicated that the Hoops’ plan is to ‘dominate’ at McDiarmid Park, with another importa…