MELBOURNE, Australia (AP) Grigor Dimitrov was pushed all the way in five sets before finally beating No. 186-ranked Mackenzie McDonald, who had never won a tour-level match before qualifying for the Australian Open.
Dimitrov won the season-ending ATP Finals last November and entered the tournament ranked No. 3, but struggled in a second-round night match which finished 4-6, 6-2, 6-4, 0-6, 8-6 as midnight approached Wednesday. (MORE)