I mean, who am I kiddin'? I ain't even in the guy's league.

4 seconds sound clip from the Rocky (1976) movie soundboard.

You can hear this line at 01:37:35.627 in the Blu-ray version of the movie.

Quote context

[...]

- Well, I'm wearin' white pants with a red stripe.

- It doesn't really matter, does it? I'm sure you're gonna give us a great show.

- Try to get some rest, kid. Good night.

- I can't do it.

- What? I can't beat him.

- Apollo?

- Yeah.

- I've been out there walkin' around, thinkin'.

- I mean, who am I kiddin'? I ain't even in the guy's league.

- What are we gonna do?

- I don't know.

- You worked so hard.

- It don't matter, 'cause I was nobody before.

- Don't say that. Oh, come on, Adrian. It's true. I was nobody. But it don't matter either, you know?

[...]