Djokovic Extends Slam Bid; 1st Time No US Players in Open QFDjokovic Extends Slam Bid; 1st Time No US Players in Open QFNovak Djokovic has extended his pursuit of the first calendar-year Grand Slam in men's tennis since 1969 by beating the last U.S. singles player at the U.S. Open.Associated PressAssociated Press
