- Former champions Novak Djokovic and Andy Murray face a potential tough US Open quarter-final after the draw made Thursday for the final Grand Slam of 2014.
World number one Djokovic, who won the title at Flushing Meadows in 2011, is the top seed in the tournament, which is missing injured defending champion Rafael Nadal.
Eighth-seeded Murray, the 2012 US Open winner who hasn't won a title since his 2013 Wimbledon triumph, could face dangerous French ninth seed Jo-Wilfried Tsonga in the round of 16.
Meanwhile, second-seeded Roger Federer has a lighter-looking path, with seventh-seeded Bulgarian Grigor Dimitrov his scheduled quarter-final foe.
Two-time defending champion women's champion Serena Williams could find two familiar rivals in her path as she vies for a first Grand Slam title of 2014.
World number one Williams is projected to face Serbian eighth seed Ana Ivanovic in the quarter-finals at Flushing Meadows.