two days in a round-robin format. the four highest-scoring teams advance to the semi-finals; the winners face each other in the grand final. the competition features modified fastnet rules and has been likened to twenty20 cricket and rugby sevens. a new format featuring shorter matches with modified rules was designed to make the game more appealing to spectators and television audiences. the world netball series was held annually in england from 2009 to 2011. netball's governing federation gained olympic recognition in 1995 after 20 years of lobbying. although it has never been played at the summer olympics, politicians and administrators have been campaigning unsuccessfully to have it included. its absence from the olympics has been seen by the netball community as a hindrance in the global growth of the game by limiting access to media attention and funding sources. some funding sources became available with recognition in 1995, including the international olympic committee, national olympic committees, national sport organisations, and state and federal governments. injuries rachel dunn from england with an ankle injury, adelaide, october 2008 one study found that over 14 weeks of play about 5% of people develop an injury. the most common injury is of the ankle (usually lateral ligament ankle strain and less often an ankle fracture). knee injuries were less common and included anterior cruciate ligament (acl) injuries. the main cause of these injuries is believed to be due to incorrect landing. one study found not warming up as a risk factor. hypermobility (having a range of motion beyond normal limits) has been associated with injuries in one small study. higher grade players, in both senior and junior competitions, are more susceptible to injuries than lower grade players, due to the high intensity and rapid pace of the game. in october 2005, australian captain liz ellis tore her acl in a match against new zealand. this injury ruled her out of the chance to play at the 2006 melbourne commonwealth games. in october 2014, casey kopua ruptured the patellar tendon in her left knee, resulting in her missing up to six months of netball.