Top-ranked Novak Djokovic and 17-time Grand Slam champion Roger Federer advanced with ease on Tuesday at the US Open but 2011 winner Samantha Stosur was ousted by US teen qualifier Victoria Duval. Six-time Grand Slam champion Djokovic who captured his fourth Australian Open crown in January, launched his quest for a fourth consecutive US Open final by beating Lithuanian 112th-ranked Ricardas Berankis 6-1, 6-2, 6-2. Djokovic fired 10 aces and 28 winners and needed only 82 minutes to put himself into a last-64 matchup against Germany’s Benjamin Becker. Djokovic, the 2011 US Open winner who lost to Andy Murray in last year’s final and last month’s Wimbledon final, improved to 12-1 in Arthur Ashe Stadium night matches, what he called “the most special night matches of any tournament anywhere in the world.” Duval, a daughter of Haitian parents ranked 296th in the world, pulled the day’s shocker with a 5-7, 6-4, 6-4 victory over Australian 11th seed Stosur in a tense struggle that lasted for two hours and 39 minutes. It was only the second Slam match for Duval, who lost to Kim Clijsters last year at New York, and was her first match against a top-20 rival. Stosur made 56 unforced errors, 21 more than Duval, on her way to a her 15th first-round Slam exit, the first since last year’s Australian Open. Stosur split with long-time coach David Taylor just ahead of the US Open, but said she could not say if that was a factor in the loss. Federer made a solid start to his bid for a sixth US Open title by defeating Slovenia’s Grega Zemlja 6-3, 6-2, 7-5 in a match delayed a day by rain. The 32-year-old Swiss star, who as the seventh seed is at his lowest spot in the US Open since 2002, will face Argentina’s Carlos Berlocq in round two. Federer, whose 56th Grand Slam start in a row matched South African Wayne Ferreira for the all-time record run, has only one title in his past 14 Slam starts, that coming last year at Wimbledon. After a second-round exit this year at Wimbledon, Federer took only 93 minutes to eliminate Zemlja despite surrendering a third-set break. Canadian 10th seed Milos Raonic fired 28 aces in defeating Italy’s Thomas Fabbiano 6-3, 7-6 (8/6), 6-3, while fellow big server John Isner blasted 16 aces to down Italy’s Filippo Volandri 6-0, 6-2, 6-3. Raonic, 22, is confident his first Slam quarter-final is within reach. Czech seventh seed Petra Kvitova, the 2011 Wimbledon champion, outlasted Japan’s 92nd-ranked Misaki Doi 6-2, 3-6, 6-1, while Danish sixth seed and former world no. 1 Caroline Wozniacki, the 2009 US Open runner-up, dispatched 133rd-ranked Chinese qualifier Duan Ying-Ying 6-2, 7-5.
