- Aren't you skating?
- Nah. I ain't skated since I was 15. That's when I started fightin'... when I was 15.

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

You can hear this line at 00:41:21.773 in the Blu-ray version of the movie.

Quote context

[...]

- Ten bucks? How 'bout eight... eight bucks?

- Come on. It's Thanksgiving.

- All right, nine bucks, you got a deal.

- You have the ice to yourself. Ten bucks.

- Give her the blades.

- Aren't you skating?

- Nah. I ain't skated since I was 15. That's when I started fightin'... when I was 15.

- Skating's kinda bad for the ankles, you know?

- Yeah.

- You're a pretty good skater, are you?

- You know, like I was saying before on the way over here. Fightin' used to be tops with me, but no more, you know?

- All I wanted to do at a fight was prove I was no bum, that I had the stuff to make a good pro, you know?

[...]