Novak Djokovic wins in straight sets
DUBAI, United Arab Emirates -- Novak Djokovic opened the defense of his Dubai Championships title with a straight sets victory over Denis Istomin, while second-seeded Juan Martin del Potro had to retire from his first-round match on Tuesday.
Top-seeded Djokovic, who is making only his second appearance this year after reaching the quarterfinals of the Australian Open, was a 6-3, 6-3 winner over 54th-ranked Istomin of Uzbekistan.
"It wasn't as easy as the scoreline indicates,'' said ...
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