World number one Lee ChongWei from Malaysia suffered a surprising first-round defeat to Denmark's Jan Jorgensen 6-21, 21-13, and 17-21 in the men's singles at the ongoing 2009 Li-Ning China Open BWF Series on Wednesday.

Jorgensen had met Lee twice, losing both of the meetings without causing Lee much trouble. However, Jorgensen disappointed Lee's Chinese supporters by winning his first set 6-21.

Lee, seeded the first, recovered in the second set to deliver a21-13 fight back, and made his effort to try for the third set, but Jorgensen refused to let go more chances, grabbing several key points to secure his victory 21-17.

Jorgensen appeared delighted after the match.

"I hope I can play every match as well as today. Now I have a chance against all players, because I just beat world number one."

He survived the tough third set in which Lee started a powerful fight back.

"I am playing so well at the moment. In the second set I lost a little pace, but I just kept trying, and got back the third set."

"I always go to the match thinking I have a chance and I can win. If you go into a game without thinking you get a chance, you will not be able to win. I think it is one of my disciplines. I always believe I can win and always believe in myself."

Jorgensen thought Lee was a little bit tired because Lee had played so many games this year.

"He played many matches. I took the first set, and I knew I had a chance, because he looked a little bit disturbed."

Lee also admitted that he was not in his best form in today's match.

"I felt very tired, and I had little desire in playing."

Jorgensen will next meet the winner between Brice Leverdez and Eric Pang.