Nathan Brown may have bitten off more than he can chew! Browny challenged Jake King to a boxing match behind his back and news got back to ‘Push Up’ very quickly. “I got a couple of messages, I didn’t think he’d be that stupid,” King said. RELATED:   Tom Rockliff Gets Barrelled For His Big Weekend In Adelaide KING CONFRONTS BROWN: “I’d fight with one hand behind my back!” BEST OF TRIPLE M FOOTY: