Canadian teen Stakusic advances to 1st-ever WTA quarterfinal with massive upset win over Ostapenko

Canadian wildcard Marina Stakusic defeats top seed Jelena Ostapenko of Latvia 6-3, 5-7, 7-6 (0) in the second round of the Guadalajara Open. The 19-year-old from Mississauga, Ont., advances to a WTA quarterfinal for the first time of her young career.