Collingwood's Nathan Murphy has hung up his boots at age 24 due to his ongoing battle with concussion. Murphy has suffered 10 head knocks throughout his career most recently at last year's Grand Final. And while he loves football, Murphy says the headaches, migraines and anxiety he was battling were becoming overwhelming so he's giving it all away to live a full and healthy life. 

For more, former AFL player Shaun Smith joins. 

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