Celtic’s three wins against DC United, Manchester City and Chelsea on the US Tour were great morale boosters for Brendan Rodgers’ team. The Celtic supporters were expecting tough tests from both Premier League teams despite having players worth tens of millions of pounds in both of their squads, Rodgers’ team took care of Pep Guardiola’s City and Enzo Maresca’s Chelsea with professionalism and with good attacking football. Guardiola’s reaction to the defeat was measured and respectful as was Maresca’s but how Celtic dismantled his team left the Chelsea boss fuming for a few extra days. So whil…