Dr John Mayhew: Should players be allowed to make their own decisions around head-knocks?

<p>Newcastle Knights back up Doctor, Dr John Mayhew joined the show, to discuss the removal of Kalyn Ponga from the field due to an H.I.A. </p> <p><strong>LISTEN ABOVE </strong></p><p>See <a href="https://omnystudio.com/listener">omnystudio.com/listener</a> for privacy information.</p>