Rafael Nadal has described losing in the second round of Wimbledon to qualifier Dustin Brown as a "bad moment" for him.
The two-time champion was beaten in four sets by the German, making it his fourth straight exit before the quarter-finals at SW19.
The Spaniard, who was seeded 10th at the tournament, told reporters: "I was ready to compete. I lost. Obviously this is a bad moment for me.
"I have to keep going and working more than ever to try to change that dynamic. I am a good loser. I always accept. I am not happy, but I accept that I am not good enough."
Nadal won a grass-court title at Stuttgart in the build-up to Wimbledon, but lost in the first round of the Aegon Championships at Queen's.
