21:52 CET - It's been a good start to the evening for the seeds in Sao Paulo, with Francesca Jones now beating Lina Glushko 4-6, 6-2, 6-3.
Berfu Cengiz is also through thanks to a 6-1, 6-2 win over Jasmin Ortenzi.
20:45 CET - Fifth seed Renata Zarazua has advanced in Sao Paulo with a 6-2, 6-1 win over Brazilian wildcard Luiza Fullana, while eighth seed Panna Udvardy has beaten Anna Sinclair Rogers 6-2, 6-3.
16:40 CET - Hello and welcome to Flashscore's coverage of today's tennis!
Our focus remains on Latin America and the action in Sao Paulo and Guadalajara specifically, which will begin in around two hours.
Across the night, we'll see former top-10 players Maria Sakkari, Beatrice Haddad Maia and Sloane Stephens all take to the court across the two tournaments.
Bring it on!