Sonnett, along with her sister, began playing for North Atlanta Soccer Association (NASA) in 2003.[2] With NASA, the Sonnetts earned back-to-back Georgia State Cup Championship titles in 2007 and 2008 and also the Region III League Championship title in 2008.[2] In the 2011 US Youth Soccer National Championship Series, NASA 12 Elite II placed third in U-17 standings, and Sonnett was named to the U-17 Best XI as a midfielder.[3][4][5][6]