“It was a straight-sets win, but it was much more difficult than the scoreboard suggests,” Djokovic told BBC Sport. “I was in trouble in the second set. It was difficult to adjust your movement under the roof; Ryan was serving fantastic and it made for a great match. “It was a close match because he performed really well when he needed to but I got the crucial breaks when I needed to.”
In truth Djokovic eased through the match even though he was far from playing his best tennis. He survived break points to the American but from then on gained composure and finished the job.
Next up for the world number 1 is Czech player Radek Stepanek.
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