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Americans Sam Querrey and Steve Johnson knock out eighth seeds Juan Sebastian Cabal and Robert Farah in the Miami quarter-finals.

Fun Continues For Querrey/Johnson In South Florida

Americans looking to reach first Masters 1000 doubles final as a team

Steve Johnson and Sam Querrey still have yet to drop a set at the Miami Open presented by Itau. The American pairing advanced to the semi-finals of the ATP World Tour Masters 1000 event on Wednesday after another straight-set win 6-3, 6-2 against eighth-seeded Colombians Juan Sebastian/Robert Farah.

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Johnson/Querrey won all four break points to move on after 60 minutes. The California natives have reached three ATP World Tour doubles finals, with their lone team title coming on clay at 2017 Geneva.

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They'll face another pair of countrymen in the semi-finals after Russians Karen Khachanov and Andrey Rublev beat third seeds Oliver Marach of Austria and Croatian Mate Pavic 6-4, 7-6(3).

On the bottom half of the doubles draw, Americans Bob Bryan/Mike Bryan moved to within two wins of their fifth Miami Open title. The Bryans beat Raven Klaasen of South Africa and New Zealand's Michael Venus 3-6, 7-6(5), 10-8. The Bryans will next face Japan's Ben McLachlan and Jan-Lennard Struff of Germany, who beat Croatia's Nikola Mektic and Alexander Peya of Austria 6-1, 7-6(4).