MIAMI, March 25 — Fifth-seeded American Jessica Pegula beat Canada’s Leylah Fernandez 7-5 6-4 at the Miami Open on Sunday to set up a fourth round clash with in-form compatriot Emma Navarro.

Fernandez broke to take a 5-3 lead in the first set but Pegula responded perfectly, winning four straight games to take the set, bringing the crowd to their feet with a backhand winner down the line to clinch the set.