Damage to which part of the brain would have the least effect on a person's ability to juggle?

Reticular Formation:"A part of the brain which deals with regulation of blood movement inside the human body and responds to detection of blockage in the blood vessels."

Explanation:

Lets, suppose there has a block age occurred in any of the blood vessel inside the human body, which is detected by neurons and the message is sent with the help of nervous system the brain analyzes the data and the responses are given in the next few steps. As, the reticular formation will have the least effect on a persons ability to juggle. As it has no relation whats so ever with the ability of the brain to juggle abilities of humans.