Dude, he's not 40. He's the same age as Patrick Franziska, and much younger than Dima or Ma Long, both of whom where still were in top form when they were 34.
Aruna easily beat Huang Youzheng last year and he was 2 years older than Fang Bo is now when he did it. It's not like he's losing to elite level players either.
He's simply not in top form and it's not his age. Compared to his level, his receives are really inconsistent and bad (we saw this in the previous tournament as well), his backhand was never great but it's gotten even worse with the fast rubber that he's using, his forehand consistency in terms of looping over and over again is low.
He's also playing a weird mix of old style/new style and that crazy fast backhand rubber is not helping him either (might actually be the source of all those inconsistent flicks).
