Kerby Joseph seems to be sending a message on Instagram to all the people doubting his work ethic as he recovers from his knee injury. The Detroit Lions are going into training camp with players already sidelined as they deal with injuries from last season. Kerby Joseph happens to be one of those players, after suffering a knee injury early last season. Though he's still working his way back to get on the field, it's uncertain when he'll be ready to suit up. Kerby Joseph with a message for the people who think he’s not working towards getting healthy.