Two-time Olympic champion, five-time world champion and a five-time All England champion, the 30-year-old Dan is unsurprisingly considered the greatest badminton player of all time.
The former world number one, who is also well-known for his mercurial temper, is a cult figure in his country and has legions of fans all over the world for his remarkable range of strokes and the ability to go from offensive to defensive to offensive again in a matter of minutes.
"It is kind of mystery how he comes back and wins. He has not been playing for a year and it is kind of cool to go on winning after a break," said Jan O Jorgensen of Denmark.
"I know he has been practising, you can see it by the way he is playing. He has been doing a lot of hard work and he is still hungry to do well, win some tournaments and I am looking forward to play him sometime," he added.