The Chicago Sky have waived Serbian forward Sonja Petrovic, the team announced Saturday. Petrovic averaged 4.8 points (35% FG), 2.3 rebounds and one assist per game during the 2012 WNBA season. She had a season high 13 points against the Minnesota Lynx on June 23. She was selected 26 overall by the San Antonio Silver Stars at the 2009 WNBA Draft. In March 2012, the Sky acquired Petrovic via trade from San Antonio for a 2013 second round draft pick. The Sky roster now stands at 12 players.