Thread:BundleofYoy/@comment-37910860-20190303164741/@comment-35998649-20190303170922

That's automatically added if you properly fill out the "month joined" parameter in the infobox.

Also, based on some of your contributions, such as this, this, and this, it has come to my attention that you may, in fact, understand how parameters automatically add categories if they are filled out correctly. I would advise that you please stop requesting for other editors to do things for you that you can easily do yourself. Continuing to request for other editors to "add" players to certain categories (such as the terminated players or any of the year joined categories) will cause you to be blocked.