Board Thread:Theories and Speculation/@comment-25132842-20180329190050/@comment-25132842-20180330165343

Mr. Grave wrote: Everyone has chakra, but not everyone is able to manipulate it. At least that's what I got from it. However, being able to discharge and manipulate chakra is not a requirement to be a ninja, as evidence by Rock Lee who managed to rise up the ranks by using his physical prowess.

Rock has chakra. It just doesn't have the ability to mold it for ninjutsu.