Did you read the article? Basically the body armor is more of a machine that forces his swing to be perfect every time. He is only allowed to use it because he has been 'grandfathered' in, new players can't wear one unless they have proof of an injury. Regardless, it's not technically "cheating." So if it was found out that Tiger Woods had some sort of implant in his arm that forced his swing to be perfect every time, it would be allowable and not considered cheating? Also - steroids have always been illegal. Baseball does not supersede the law. Just because steroids weren't against the rules of baseball at one point doesn't make it okay for players to have taken them during that time. Sports armor isn't illegal under any federal, state or municipal laws I'm familiar with, and that's what at's issue here. He was grandfathered in under baseball's armor rule, therefore he isn't breaking any rules and therefore not cheating when he wears it. Steroids are a completely different issue--I believe he took them but believe it's not quantifiable--but let's not dogpile here about other very gray areas.