- Sure. He's great, Eddie. But the night he fights his big fight, he won't be able to punch his way out of a paper bag.
- Why not, Mike?
- You'll sell him out, like you sold out all the others.
- Not this one, Mike.

11 seconds sound clip from the Kiss Me Deadly movie soundboard.

You can hear this line at 00:46:36.929 in the Blu-ray version of the movie.

Quote context

[...]

- Did he step out or run out? Or maybe he was pushed.

- Yeah. Pushed. More like he was pushed.

(Boxing speed bag)

- Hello, Mike.

- Hi, Eddie.

- How do you like my new boy? Kid Nino. Isn't he pretty? Doesn't he move pretty?

- Sure, just like all your fighters, Eddie.

- All right, Kid. Shadowbox around. I'm showing you off to a friend.

- Isn't he beautiful? Isn't he lovely? Look at the way he moves.

- Sure. He's great, Eddie. But the night he fights his big fight, he won't be able to punch his way out of a paper bag.

- Why not, Mike?

- You'll sell him out, like you sold out all the others.

- Not this one, Mike.

- Wait until the odds build up, until you can't resist.

- No, Mike.

- When does he go?

- Tomorrow night. Main bout.

- He's a winner, so it'll be short money. Bet all you can. Bet your shirt.

- It would pay more if he lost. You sure he isn't gonna lay down and die?

- On my word, Mike.

[...]