FILE - In this Aug. 12, 2008, file photo, Natalie Coughlin shows off her gold medal after the women's 100-meter backstroke final at the Beijing 2008 Olympics in Beijing. Coughlin plans to use the Pan American Games in Toronto as a stepping stone to what could be a historic Olympic performance. The 12-time Olympic medallist will become the most decorated American female swimmer in history if she captures one more medal next year at the Rio Games. (AP Photo/David J. Phillip, File)