Luke McCowan is living every Celtic supporter’s dream right now. Joining the club on transfer deadline day, McCowan was Brendan Rodgers’ last signing of the summer window as the Celtic boss put the finishing touches to his recruitment for the season ahead. The former Dundee captain is a self-confessed Celtic fan and McCowan has already surprised many with his performances for the Bhoys. McCowan’s enthusiasm at joining his boyhood heroes is clear to see and former Celtic midfielder, Stilyan Petrov, has shared what he told the 26-year-old when he met him after he made his big move to the Glasgow…