<div><div><img src="https://live-production.wcms.abc-cdn.net.au/6224c77e558e4e3b283684eced798244?impolicy=wcms_watermark_news&cropH=1592&cropW=2830&xPos=0&yPos=148&width=862&height=485&imformat=generic" style="width: 100%;"><div>Novak Djokovic retires from his Australian Open semifinal against Alexander Zverev due to a muscle tear he sustained earlier in the tournament.</div></div></div>
