Intriguing first-round matchups for Canadians at Australian Open A most unique Australian Open offers several intriguing storylines for the seven Canadians in the singles field. Bianca Andreescu's long-awaited return tops the list. There's a sizzler of a first-round matchup on tap between young guns Denis Shapovalov and Jannik Sinner. The Canadian Press Denis Shapovalov , The Canadian Press A most unique Australian Open offers several intriguing storylines for the seven Canadians in the singles field. Bianca Andreescu's long-awaited return tops the list. There's a sizzler of a first-round matchup on tap between young guns Denis Shapovalov and Jannik Sinner. Rebecca Marino's comeback continues with her first Grand Slam appearance since 2013. Youngster Leylah Annie Fernandez is eager to show she's the real deal.