Wearing a dark blue T-shirt bearing Roger Federer’s first name and pushing a gray stroller carrying her 1-year-old daughter, Martina (as in Hingis), along a Rod Laver Arena concourse at the Australian Open, Angelica Ibarra spoke for many a tennis fan when she described her mood on Day 1 of Grand Slam action since two of the sport’s most significant athletes ended their careers. (More Tennis News)