Man alive, you sure swing pretty.
3 seconds sound clip from the The Jackie Robinson Story movie soundboard.
You can hear this line at 00:14:02.969 in the Blu-ray version of the movie.
Quote context
[...]
- You hadn't oughta do that, Sampson. You'll make this boy mad. Nice and easy, I said.
- Ball one! What's wrong with that boy?
- He's incorrigible, that's what he is. Incorrigible!
- Man alive, you sure swing pretty.
- Hold it!
- You shouldn't have done that, new boy. I thought we gonna be friends.
- Oh, why don't you throw the ball right?
[...]