<p style="text-align:start;" size="0" _root="undefined" __ownerid="undefined" __hash="undefined" __altered="false"><span style="color:#000000"><span style="background-color:#fcfcfc">As tennis star Novak Djokovic faces problems defending his Australian Open title over the controversy over his </span>Australian visa <span style="background-color:#fcfcfc">(and apparent anti-vaccine stance), the problem could follow him as he tries to set a new record for most Grand Slam wins—especially at the US Open.</span></span></p><p style="text-align:start;" size="0" _root="undefined" __ownerid="undefined" __hash="undefined" __altered="false"></p>
