Celtic defender Alistair Johnston lasted the duration as Canada opened Copa America against the might of Argentina early this morning. Hoops supporters will be keeping a close eye on international tournaments this summer, with two weeks remaining until they can see their heroes in action for the first time this campaign against Ayr United. Johnston has earned 42 caps for Canada and is an important figure for his nation, who are competing at the tournament for the first time in their history. Coming up against the might of Lionel Messi, Lautaro Martinez and company, 67 Hail Hail takes a look at…