League of Legends (LoL) Question: How do I play against Lee Sin?

If you want help, please give us more details.
What role are you having trouble playing, when Lee Sin is on the enemy team?
Which parts of playing against him you are having problems with?
What champions have you used against him?

^Things like these would make it easier for us to help you.

if you know how to play Lee Sin then you should be able to win against a Lee Sin so if you have time or want to then i would say try to learn Lee Sin so that you what he is strong against and what he is week against. hope that helps :)

When going vs. Lee jungle, one thing you must have in your mind is always ward your buff and objectives, whatsmore, keep the river warded. If you can, counterjungle him. He can't really do that much against junglers with sustain such as WW, a nice pick against him would be Nunu, he would counterjungle and stay in the jungle forever!

Generally Lee cant take people with higher sustain then him if they have some defense. Mundo, Nunu, Warwick can all usually beat Lee unless lee has allies. Just force him to burn his abilities then turn the fight on him. Also Lee doesnt really have a poke in lane. Pick somebody like Mundo Sion or Rumble and you can beat him in lane through poke.

Hope this helped for champions that you could use.

If he keeps jumping to you, you can flash into your turret so he gets dives. Then you can stun him and possibly pick up a kill. I cant really give you more info since you dont really have any info.