I have to rewrite sent. to fix misplaced and dangling phrases.

1. To become an outstanding all-around player like Lambert, many hours of training are required.

My revised sent is...
Many hours of training are required to become an outstanding all-around player like Lambert.
What do you think?

Well done!

Thank you :)

Your revised sentence is correct! You successfully fixed the misplaced phrase in the original sentence by moving "to become an outstanding all-around player like Lambert" to the beginning of the sentence, making it clear that this is the action requiring many hours of training. Well done!