Thats a great idea. I think that would bring a lot more people to the site to make an account, and those those who have accounts and don't come to the forums, i think a lot of them would come, and then get in to other topics besides sports as well
Although, this probably should have gone in the Support And Suggestions section of the forums.
Well, I personally wouldn't use it, and the AG crowd doesn't seem like they watch sports, due to me having seen only like five sports topics in my time here. And I've been here since January.