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Thomaz Bellucci

On long day, Nadal assures self, Spain of at least 1 medal

What was shaping up as a very long day of Olympic tennis for Rafael Nadal began shortly after 11 a.m., when he played the first point of what would become a victory that put him in the singles quarterfinals.

Then, after a break of less than 2 hours, Nadal went back out on court for a men's doubles semifinal Thursday and won that, too, assuring himself of leaving the Rio de Janeiro Games with at least one medal for Spain.

Apparently, though, that was enough for the 14-time Grand Slam champion, who pulled out of mixed doubles shortly before he was scheduled to pick up his racket yet again in the evening for a first-round match in that event.

Nadal, the gold medalist...