Skupski/Venus also advance
The Australian-American tandem, who are teaming for the first time this year, won 75 per cent (36/48) of their first-service points to set up a meeting with #NextGenATP stars Sebastian Korda and Jannik Sinner.
Nadal Sinks Sock In Washington Thriller
Neal Skupski and Michael Venus also advanced to the quarter-finals as the second seeds overcame French-Australian pair Fabrice Martin and Max Purcell 7-5, 6-3 in 67 minutes. The British-New Zealand duo next face Cameron Norrie and Luke Saville.
Alex de Minuar and John Millman sprung a surprise as the Australians upset top seeds John Peers and Filip Polasek 7-6(4), 5-7, 10-7. De Minuar and Millman will next play Marcus Daniell and Marcelo Melo after the Brazilian-New Zealand team took down Marcelo Arevalo and Matwe Middelkoop 7-6(8), 6-2.