Guests on the show this morning included Adelaide Crows forward Lachlan Murphy, who recently signed a contract extension to remain at West Lakes for another two seasons, and former Port Adelaide CEO Keith Thomas. Keith is now CEO of a company called SPARK which is hoping to develop tools to help better diagnose and treat concussion symptoms in athletes. Topics discussed on the show this morning included "Ballchangegate" from the fifth ashes test in London, the media feud between Gary Lyon and Mark Robinson, and the retirement of Shannon Hurn. Regular segments returned again this morning including the Breaky Brainstorm, footy shorts, the budget car quiz, and Quick Bicks. Learn more about your ad choices. Visit megaphone.fm/adchoices