The Serbian got the defence of his title off to an emphatic start as he brushed aside the Spaniard 6-1 6-0 in under an hour.
"I lost only one game, so there were not too many flaws in my game that I could recall," Djokovic told the ATP's official website. "On the other side, I've had an opponent who is a specialist on this surface, but he hasn't played even close to his highest level. He was making a lot of unforced errors.
"I was just trying to use the court well, not allow him to get into a rhythm. I was changing the angles. I was coming to the net, being aggressive. Just a very good first match."