Big wave surfer Ross Clarke-Jones opens up about his body starting to slow him down; rugby league stars Dave Tyrrell and Eddy Pettybourne endure a cycle of damage, rehab and more damage; Australian rules football player Lachie Hansen breaks his nose.

Australian rules player Liam Anthony needs surgery after dislocating his shoulder; Ben Ross risks quadriplegia after smashing a disc in his neck; motocross racer Kade Mosig opts for an artificial ligament after tearing his anterior cruciate ligament.

Ben Ross is determined to continue playing even after his accident nearly leaves him with quadriplegia; netballer Emily Barnier snaps a ligament in her knee; doctors try to figure out what's wrong with an AFL player who becomes sick mid-game.

Kyle Reimers, a young AFL player for Essendon, is rushed straight into surgery after a thumb injury. Before the bone can begin healing, Kyle will need to undergo a special treatment.

AFL player Leroy Jetta gets hit on the head and breaks a hand; rugby player Mat Rogers suffers a serious knee injury; Roy Asotasi snaps a muscle off his shoulder bone.

After playing most of the season with severe hip pain, Ben Ross' examination reveals he has significant damage; Essendon doctors look into Henry Slattery's head injury; rugby player Roy Asotasi snaps a ligament in his knee.