KEY BISCAYNE, Fla., (AP) Rafael Nadal faded in the subtropical heat and retired after falling behind in the third set of his opening match Saturday at the Miami Open against Damir Dzumhur.
The No. 5-seeded Nadal trailed 2-6, 6-4, 3-0 when he called it quits after losing a point to fall behind 30-15. He had earlier consulted with a trainer three times at his chair between games, and had his blood pressure checked.
The match lasted less than two hours, but the weather was sunny and humid with a temperature approaching 90 degrees, and even higher on the stadium hardcourt.
It had been 443 matches since Nadal last retired - in the 2010 Australian Open quarterfinals against Andy Murray.
Dzumhur, a 23-year-old Bosnian ranked 94th, came from behind using a variety of tactics.