 That's Matt Piper, Wimbledon in full swing, with singles players dueling for spots in the quarterfinals. In an All-American showdown, 19th seed Emma Navarro defeated second seed Coco Gauff yesterday. Heartbreaking loss for fellow U.S. player Madison Keyes, who pulled out of her match against Italian Jasmine Paolini with an injury to her left thigh. Deborah Rodriguez, CBS News.