It was such a terrible performance.
He complains he is exhausted again. It was too hot, he had no energy, he could hear the comments of the people in the stands when he wasn't chasing down a ball, but he swears he couldn't run, etc. etc. He was trying to shorten the points, but he was missing so much, it was plain painful to watch.
The only highlight (together with the aces stats and a couple of points in the 3rd set tiebreak) was the interview just after the match, he apologized in a very cute way for having played so poorly, he kept saying that he was so lucky to go through playing like that and really wants to redeem himself today.
He says it's the reason why he pulled out of Acapulco too, he feels exhausted again.