They just now have started offering grading for cards from two trading card games, however. "Magic: The Gathering," and, "The Pokemon Trading Card Game," now can have their cards graded and encapsulated by CGC. This is pretty interesting, but it made me wonder, "What about sports cards?" seeing as that is a big business as well.
Less than a day after I pondered that, I received an email from CGC and saw articles discussing that email about how they are looking for experts so they can start authenticating and grading sports cards as well. It won't be CGC itself doing sports grading though, it will be a new sub-company, CSG, or Certified Sports Guaranty. Clearly CGC is expanding its focus with all these trading cards and sports cards being certified!