There are always a bunch of articles discussing the best player of the world and these segments always end with Messi and Ronaldo. But, there's more than just being "the ultimate best." It's also good to be the best player of one certain body part.
This list discusses the best player in each of the most important sections of the body.
Two judging standards: recent players (cannot be retired) and must have some sort of evidence showing how good they are in specific body part.