Britain had mixed doubles success in Indian Wells on Monday as Dominic Inglot progressed to the men's quarter-finals.
Inglot has risen to become British doubles number one this season, reaching the quarter-finals of the Australian Open with Filipino partner Treat Huey in January.
And the pair were on-song again in California as they hit back from a set down to upset fifth-seeded Spaniards Fernando Verdasco and David Marrero 3-6 6-3 10-7.
In the last eight they will meet second seeds Alexander Peya and Bruno Soares, who defeated Andy Murray and Jonny Marray in the second round.
It was though a less happy day for Colin Fleming and Ross Hutchins.
The British duo secured their third victory together since Hutchins' return from cancer in the first round and looked good again after taking the opening set against third seeds Ivan Dodig and Marcelo Melo.
But the Croatian-Brazilian pair turned things around to win 3-6 6-4 10-6 at the BNP Paribas Open.