Aust netball's Nat von Bertouch retires Australian netball skipper Natalie von Bertouch has announced her retirement from the sport. Von Bertouch led the Diamonds to victory at the 2011 world championship. She capped her career by steering the Adelaide Thunderbirds to a second trans-Tasman title with a win over the Queensland Firebirds last Sunday. The 30-year-old has battled injury in recent years. Von Bertouch also played in two Commonwealth Games, helping Australia to silver medals in 2006 and 2010.