Milos Raonic stumbled out of the gate but quickly found his stroke and advanced to the second round of the Australian Open.
Raonic, the No. 13 seed, dropped the first set of his opening match Monday to world No. 104 Jan Hajek of the Czech Republic 3-6 before winning three straight, 6-1, 6-2, 7-6 (0).
The 22-year-old Thornhill, Ont., native will next face Czech Lukas Rosol, who upset Rafael Nadal at Wimbledon last year.
Jesse Levine, who is playing his first Grand Slam tournament as a Canadian, knocked out former world No. 5 Tommy Robredo 7-6 (5), 6-7 (2), 6-4, 6-4. The Ottawan will play 12th-seeded Gilles Simon of France in the second round.
On the women's side, Rebecca Marino's stay in Melbourne was short-lived.
Marino, the only Canadian female entered in the singles event, lost in straight sets to China's Peng Shuai 6-3, 6-0 in just 52 minutes on the second day of competition.
The 22-year-old, who lives in Vancouver, has never made it past the second round Down Under.