What age is too old, for professionals?

[Tyler]

What age would you say is too old for professionals in badminton? 35? 40? 45?

[gyang333]

There is no set age, but for example, Kenneth Jonassen, who is still in the top ten in the worlds for Mens Singles, is 32, and he is probably one of the older players, Peter gade is close too.

[ester2007]

Once players come to their30s, their physical strengh decrease very quickly. However there is no an age in which player can not play! If they have the willpower and will to play, they're never too old!

[lbtriggerman]

Their power and stamina decreases but their smarts/wits are very impressive. I've played against some older guys and they are very disciplined in placing shots. BTW their shot placings seem to improve as they age.

[johnnyk]

I got my butt kicked by someone twice my age, so no, there's no age limit.