I can't learn how to fight right-handed no more.
3 seconds sound clip from the Rocky II movie soundboard.
You can hear this line at 01:05:09.039 in the Blu-ray version of the movie.
Quote context
[...]
- They ought to outlaw southpaws!
- Yeah, why didn't you tell me this before?
- I didn't want to hurt your feelings.
- Now, look. To pull this miracle off, you gotta change everything.
- I can't learn how to fight right-handed no more.
- What's 'can't'? There ain't no 'can'ts'! There's no 'can'ts'!
- Now, he will beat you uglier than you are now.
- But first you gotta get speed. Demon speed. Speed's what we need. We need greasy, fast speed!
- Now, I'll show you a trick how to get some speed in them legs.
[...]