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Santiago Gonzalez of Mexico and Chile's Julio Peralta celebrate their first-round win on Tuesday in Shanghai.

London Doubles Hopefuls Progress In Shanghai

Spaniards, Colombians looking to play at The O2 next month

Two doubles teams looking to qualify for the Nitto ATP Finals in London next month made strides on Tuesday at the Shanghai Rolex Masters in China. Spaniards Feliciano Lopez and Marc Lopez (no relation), in 10th place in the Emirates ATP Doubles Race To London, advanced to the second round at the ATP World Tour Masters 1000 event by walkover.

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Defending champions John Isner and Jack Sock didn't compete because Sock was suffering from dehydration. Lopez/Lopez are in 10th place in the Doubles Race, 185 points behind eighth-placed Raven Klaasen and Rajeev Ram. The top eight doubles teams qualify for the prestigious season-ending tournament, to be held at The O2 in London from 12-19 November. Lopez/Lopez will face second seeds Lukasz Kubot and Marcelo Melo in the second round.

Colombians Juan Sebastian Cabal and Robert Farah, alternates at the Nitto ATP Finals a year ago, escaped a tight opener 6-7(8), 7-6(7), 10-8 against Nikola Mektic and Nicholas Monroe. Cabal/Farah are in 11th place in the Doubles Race, 70 points behind Lopez/Lopez. Cabal/Farah will next meet third seeds Jean-Julien Rojer and Horia Tecau. Santiago Gonzalez of Mexico and Chile's Julio Peralta also advanced, beating Italy's Paolo Lorenzi and Albert Ramos-Vinolas of Spain 7-6(5), 7-6(3).