Canadian tennis star Leylah Fernandez has a date in the final 16 at the Guadalajara Open after knocking off 13th-seeded Elise Mertens of Belgium on Tuesday.

Fernandez, of Laval, Quebec, defeated Mertens 6-3, 6-4 in the WTA 1000 tournament and will play the winner of a round-of-32 match between Americans Madison Keys and Emma Navarro.

Both players had three aces in the one-hour, 34-minute match. Mertens had eight double faults while Fernandez had five.

Fernandez saved four of 11 break points while her opponent saved two of six.

In women's doubles on Tuesday, U.S. Open champions Gabriela Dabrowski of Ottawa and partner Erin Routliffe of New Zealand survived a scare against Arantxa Rus of Netherlands and Lyudmyla Kichenok of Ukraine, winning 6-3, 4-6, 11-9 in a round-of-16 match that took one hour, 28 minutes to complete.

Eugenie Bouchard of Westmount, Que., and her partner Maria Fernanda Navarro Olivia of Mexico lost 4-6, 6-7 (6) to Tereza Mihalikova of Slovakia and her partner Xu Yifan of China.