I didn't know that he is skipping the Denmark Open. And from what I understand, there is no reports that he is injured. Sounds like from the interview posted at BadmintonPlanet, Momota has confidence issues. 28 years old is not that old for Badminton, considering that LD made it to the semi-finals of the 2016 Olympics at 32, just barely losing to LCW. And LCW himself, at 33 years old, got to the finals at the 2016 Olympics, getting the silver medal there. In fact, LCW was still a top player in the world up to 2019 when he was like 36 years old, but he was forced to retire from his nose cancer. Unfortunately though, age affects everyone differently. Taufik had a steep decline in his game when he was in his late 20s. I can't say that age is hitting Momota the same way that it hit Taufik, but certainly, Momota must not be feeling confident at the moment if he is skipping the Denmark Open.