Top 3 seeds advance to quarterfinals in Dubai
Top seed Novak Djokovic struggled in his first-round match at the Dubai Duty Free Tennis Championships but had no trouble a day later, defeating Tallon Griekspoor of the Netherlands 6-2, 6-3 on Wednesday in the United Arab Emirates.
Djokovic used four service breaks and cashed in on 91 percent of his first service points (20 of 22) to win in just 82 minutes and advance to the quarterfinals. The 35-year-old Serbian is a f