Unwell Nadal makes first-round exit at Miami
Spanish fifth seed Rafael Nadal, struggling to cope with heat and humidity, retired from his second-round match Saturday at the ATP and WTA Miami Open, handing 94th-ranked Bosnian Damir Dzumhur a 2-6, 6-4, 3-0 triumph.
The 14-time Grand Slam champion crashed out of thre Australian Open in the first round earlier this year, only the second time in his career his departed a Slam tournament after one match.
Nadal is a four-time Miami finalist but has never won the title.