Rukas said:No he didnt. Bruce Lee did not train Jackie Chan, I doubt they even met.
Jackie Chan is not a martial artist, he was raised in the Chinese performance art school, acrobatics and stuff like that. He was not trained in an art of Martial Arts.
Jet Li was world champion for 14 years, and remains undefeated at that.
Although I agree that Jet Li would clean house, Bruce Lee & Jackie Chan did meet. Jackie Chan was in Enter The Dragon & was actually grabbed by Lee & held for a second (in the underground cavern scene). Apparently Lee, uncharacteristically, made a mistake in one take & accidentally injured Chan. In order to make this up to Chan, Lee promised him a role in every future Bruce Lee film. Of course, Lee died before this promise could be fulfilled.
Edit: And just so people have something to look out for next time they watch Enter The Dragon here's a pic (btw, Chan is only on camera for a couple of seconds, such is the speed of the scene).