NFL bosses sent officials to Dublin this summer with a view to hosting games in the Irish capital.League executives performed checks on the city’s two major stadiums with the Pittsburgh Steelers lined up to play there.5The Pittsburgh Steelers are being lined up to play a game in IrelandCredit: Getty5The Aviva Stadium in Dublin hosted college football’s season opener in front of 50,000 fansCredit: Getty5Croke Park is the home of Irish Gaelic sports and holds over 80,000 spectatorsCredit: SportsfileThe Steelers separately had senior management staff in Dublin this month when the city hosted college football’s opening game.Pittsburgh was awarded marketing rights…