TOKYO — World number one Lee Chong Wei of Malaysia failed to live up to his pre-match promise, losing to Indonesia's Simon Santoso in the Japan Open badminton tournament on Thursday.
The top seed, who has been struggling with his old left knee injury, worked hard in the final game clawing back from 5-12 to 19-19 before finally surrendering 19-21, 21-15, 21-19 in the second round.
Lee, the champion here in 2007, quickly left the court for treatment to his knee without talking to reporters.
For Santoso, it was his biggest win so far, although he has beaten Lee three times when the Malaysian was ranked lower.
"When I took the lead in the final game, I slowed down a little bit, giving him the chance to fight back. But I was patient in the end and able to beat him," said Santoso, ranked 16.