Australian Open: Jessica Pegula outclasses defending champion Madison Keys to storm into quarter-finals | Tennis News
Jessica Pegula, left, is congratulated by Madison Keys after winning their fourth round match at the Australian Open. (AP Photo) Jessica Pegula delivered a ruthless and emotionally charged performance to knock out defending champion and close friend Madison Keys, cruising into the quarter-finals of the Australian Open with a commanding 6-3, 6-4 victory on Monday.Go…