FILE - In this Aug. 4, 2012, file photo, Maria Sharapova, of Russia, returns a shot to Serena Williams, of the United States, in the women's singles gold medal match at the All England Lawn Tennis Club at Wimbledon in London at the 2012 Summer Olympics. Fans can look forward to a variety of grunts, shrieks and hoots as the start of the U.S. Open tennis tournament approaches on Monday, Aug. 27, in New York. Noisemaking competitors have stirred reactions from tennis enthusiasts and opposing competitors alike, causing governing bodies to look for ways to regulate the sound level. The Associated Press takes a look at offenders past and present, the hindrance rule, and how to tame the grunters. (AP Photo/Elise Amendola, File)