Although he says he sometimes had to don an “invisible cloak” at Collingwood, Hawthorn’s Jack Ginnivan says his three years at the Magpies did teach him how to win close games; intel he is now sharing with Hawks coach Sam Mitchell. Although he says he sometimes had to don an “invisible cloak” at Collingwood, Hawthorn’s Jack Ginnivan says his three years at the Magpies did teach him how to win close games; intel he is now sharing with Hawks coach Sam Mitchell. Sport / AFL Sydney Morning Herald – Latest News