Celtic are gearing up for their Scottish Premiership opener against Kilmarnock this weekend, though they also have plenty of dealings on the transfer front to attend to. The Bhoys finished their pre-season tour of the United States with three impressive victories against DC United, Manchester City and Chelsea, registering 12 goals in the process. Now, they have returned to Parkhead with all focus on Flag Day this Sunday. Brendan Rodgers will be reliant on big hitters such as Matt O’Riley, Reo Hatate and Kyogo Furuhashi to unlock a stubborn Kilmarnock outfit. Despite goalkeeping duo Kasper Schm…