<p>We love Aussie rules football, but like other contact sports it comes with risk of head knocks for the players. </p><p>New figures based on analysis of the brains of deceased players, reveal a big increase in the number of them known to have the degenerative brain disease CTE. </p><p>Is the AFL doing enough to support families after a tragedy and inform players at all levels of the game about the risks associated with football? </p><p>Today, Four Corners reporter Jess Halloran on her investigation into CTE and the AFL. </p><p>Be aware, this episode discusses mental health and suicide. If you or anyone you know needs help, you can call Lifeline on 13 11 14 </p><p>Featured: </p><p>Jess Halloran, Four Corners reporter </p>