MELBOURNE, Australia(AP) U.S. Open champion Serena Williams remains on track to back-to-back majors, advancing to the Australian Open semifinals with a comeback win over Svetlana Kuznetsova.
Russia's Kuznetsova, the 2004 U.S. Open champion, served for the match in the second set but Williams rallied for a 5-7, 7-5, 6-1 win at Rod Laver Arena on Wednesday.
The stadium roof was closed after the first set when temperatures soared above 104 degrees and the tournament's Extreme Heat Policy was put into effect, suspending play on outside courts.
The 27-year-old Williams has nine Grand Slam singles titles and won the Australian Open in 2003, 2005 and 2007.