Laura Robson was left deflated after offering little resistance in a straight-sets defeat by Caroline Wozniacki in the French Open.
The 19-year-old Briton would have fancied her chances in the opening round against the out-of-form and 10th seed from Denmark.
However, 39 unforced errors and a mis-firing serve from Robson helped the former world No 1 ease into round two in Paris with a 6-3 6-2 victory in one hour and 11 minutes.
"I think Caroline played really well and I thought she played smart," said Robson, ranked 35th in the world.
"She definitely knew what she wanted to do on the court, and generally I just wasn't able to get into the match. My shots just weren't firing as well as they usually are, so it's disappointing."
It will be a boost for Wozniacki who showed some semblance of her old form in spurts coming on the back of five straight defeats.
The 22-year-old said: "My confidence has always been good. Experience means a lot. I have been on the Tour a very long time and played a lot of matches.
"I know how to play my best but sometimes it's not as easy to execute on court as it is in my head. Laura is a great girl. I'm just glad to be through and feeling like I'm in the tournament."