Britain's Johanna Konta rediscovered her best form as she thrashed Pauline Parmentier of France in straight sets to reach round four at the Miami Open.
Konta, seeded 10th, took charge from midway through the first set to win 6-4 6-0 in 63 minutes.
She next faces Lara Arruabarrena in the last 16 after the Spaniard upset eighth seed Madison Keys 7-5 7-5.
Rafael Nadal celebrated his 1,000th Tour match with a 0-6 6-2 6-3 victory over German Philipp Kohlschreiber.
In the men's doubles, Jamie Murray and Bruno Soares beat Paolo Lorenzi and Joao Sousa 6-0 6-3 in round two.