NEW YORK ( AP ) -- Victoria Azarenka and Stan Wawrinka make trips to the U.S. Open quarterfinals an annual affair .
NEW YORK ( AP ) -- Victoria Azarenka and Stan Wawrinka is both two - time Grand Slam champions .
NEW YORK ( AP ) -- Victoria Azarenka and Stan Wawrinka , both two - time Grand Slam champions , make trips to the U.S. Open quarterfinals an annual affair .