Felix Auger-Aliassime Retires from Australian Open Match Against Nuno Borges

Australian Open Auger-Aliassime retires at Australian Open, Borges advances Canadian retires at start of fourth set Clive Brunskill/Getty Images Felix Auger-Aliassime plays against Nuno Borges Monday in Melbourne before retiring down two sets to one. By ATP Staff Seventh seed Felix Auger-Aliassime was forced to retire due to injury during his first-round match at the Australian Open on Monday. Portugal’s Nuno Borges led 3-6, 6-4, 6-4 when the Canadian could not continue. Auger-Aliassime, 25, reached the semi-finals of last year's US Open and was seeking to begin the 2026 major season in similar form. But seemingly struggling with an upper left leg injury, Auger-Aliassime called a medical time out late in the third set and again received treatment before the start of the fourth set. After playing two points in the fourth set, Auger-Aliassime retired. “I feel for him,” Borges said of Auger-Aliassime. “I know how he feels to struggle physically and it is part of tennis. I hope he gets better quickly and back to his best level. “It’s a great win for me either way. I thought I competed well. Maybe if he was 100 per cent, it would’ve been a different score, but I’m really happy to push through this one and get another opportunity on Wednesday.”