Querrey hopes to pull off another major upset

Sam Querrey, shown in 2014, knocked off top-ranked Novak
Djokovic in the third round at Wimbledon last year en route
to his first Grand Slam quarterfinal. Photo by Paul Bauman

   The showdown is set.
   No. 31 seed and San Francisco native Sam Querrey, hoping to knock off a top-ranked player again, will face Andy Murray in the third round of the Australian Open.
   Querrey advanced with a 7-6 (5), 6-0, 6-1 victory over Alex De Minaur, a 17-year-old wild card from Australia, on Tuesday night (PST) in Melbourne.
   The 6-foot-6 (1.98-meter) Querrey won 93 percent of the points on his first serve (43 of 46) against the slightly built De Minaur, the Wimbledon junior runner-up last July.
   Querrey pounded nine aces and committed nine double faults as he equaled his best Australian Open result, the third round, in his 11th appearance.
   Murray trounced 19-year-old Russian Andrey Rublev, the French Open boys champion and No. 1 junior in the world in 2014, 6-3, 6-0, 6-2 in a late match at Rod Laver Arena.
   Querrey, who stunned top-ranked Novak Djokovic in the third round at Wimbledon last year en route to his first Grand Slam quarterfinal, is 1-6 against Murray.
   Murray won the first two of his 44 career tour-level singles titles (tied for 14th in the Open Era and fourth among active players) in the now-defunct SAP Open in San Jose.
   In men's doubles on Tuesday, No. 3 seeds Bob and Mike Bryan got off to a good start in their quest for a seventh Australian Open title.
   The 38-year-old twins (Stanford, 1997-98) dominated Frenchmen Paul-Henri Mathieu and Benoit Paire 6-3, 6-0 in the first round.
   The Bryans have won a record 16 Grand Slam men's doubles titles but none since the 2014 U.S. Open.
   Aussies John Bromwich and Adrian Quist hold the record of eight Australian Open men's doubles titles, which they won consecutively from 1938 to 1950. The tournament was not held from 1941 to 1945 because of World War II.
   Meanwhile, Liezel Huber, formerly ranked No. 1 in women's doubles, and Modesto product Maria Sanchez defeated Madison Brengle of Dover, Del., and Anastasia Rodionova of Russia 7-6 (4), 6-2 in the opening round.
   Huber, a 40-year-old U.S. citizen from South Africa, is playing in her third tournament since retiring after Wimbledon in 2014. She and Sanchez will meet No. 3 seeds Ekaterina Makarova and Elena Vesnina of Russia.
   Makarova and Vesnina won the 2013 French Open and 2014 U.S. Open and reached the final of the 2014 Australian Open, losing to Italians Sara Errani and Roberta Vinci.
   Chuang Chia-jung of Taiwan and Nicole Gibbs (Stanford, 2011-13) of Marina del Rey in the Los Angeles area lost to No. 2 seeds Bethanie Mattek-Sands of Phoenix and Lucie Safarova of the Czech Republic 6-1, 7-5.
   Mattek-Sands and Safarova have won three Grand Slam titles, including the 2015 Australian Open.