I know that maybe you're not really very good, just an amateur.
6 seconds sound clip from the Mystery of Chess Boxing movie soundboard.
You can hear this line at 00:40:42 in the DVD version of the movie.
Quote context
[...]
- Oh, Yuan sent me here to study.
- Kung Fu? Well, I could teach you chess with Kung Fu.
- My last teacher was a cook. Now it seems my next one could only play chess.
- I know that maybe you're not really very good, just an amateur.
- Guess Yuen made a mistake. Can't be helped.
- Granddad, come on. Uncle Yuen sent him here.
- See what he's got? That's a real heavy pot lid. I'll bet that he's really strong.
- So you like him, huh? Kid, come here.
- Like I said, your Kung Fu probably isn't too good.
[...]