Querrey upset by Hungarian in Australian Open

   San Francisco native Sam Querrey won't have to worry about possibly facing Roger Federer in the fourth round of the Australian Open.
   Adding to the United States' woes in the tournament, the 13th-seeded Querrey lost to 80th-ranked Marton Fucsovics of Hungary 6-4, 7-6 (6), 4-6, 6-2 today in the second round in Melbourne. They met for the first time.
   Querrey, a Wimbledon semifinalist and U.S. Open quarterfinalist last year, has never advanced past the third round of the Australian Open in 12 career appearances.
   Fucsovics reached the final of last week's $75,000 Canberra (Australia) Challenger and won the 2010 Wimbledon boys singles title.
   Only two American men, Tennys Sandgren and Ryan Harrison, remain after two rounds. Sandgren took out ninth-seeded Stan Wawrinka, the 2014 champion, 6-2, 6-1, 6-4 in a late match. Wawrinka was playing in his first official tournament since undergoing knee surgery five months ago.
   Only three American women are left: 17th-seeded Madison Keys, Lauren Davis and lucky loser Bernarda Pera. In the previous major, the United States swept the women's semifinal berths in the U.S. Open.
   In the first round of men's doubles in Melbourne, 36-year-old former Stanford star Scott Lipsky of Irvine in the Los Angeles area and David Marrero of Spain ousted eighth-seeded Raven Klaasen of South Africa and Michael Venus of New Zealand 7-6 (14), 7-6 (4).