By Steve Keating RIO DE JANEIRO (Reuters) - When Graham DeLaet was in need of a caddie for the Rio Olympics, he did what any Canadian would do. With his usual bagman, newly married Jules Trudeau, opting out of Rio because of Zika fears, DeLaet turned to his neighbor Ray Whitney, a recently retired veteran of the National Hockey League where his career spanned 17 years. Whitney certainly knows what it means to wear the Maple Leaf, having represented Canada at four world ice hockey championships, though on each of those four occasions he returned home without a medal. More...