Celtic’s transfer business concluded with the capture of Luke McCowan from Dundee on transfer deadline day. McCowan’s signature followed Brendan Rodgers’ capture of Arne Engels and Auston Trusty as Celtic strengthened their first team with the quality the Hoops boss has been craving for months. However, reports suggested that Celtic also had their eye on Polish attacking midfielder, Mateusz Bogusz, this summer but Celtic pulled away from the deal to focus on other transfer priorities. And now, Bogusz’s dad has spoken out about his son’s future and explained how the move to MLS came about and d…