sportmania.net, sportzone.org, saysporty.com, saysportz.com The highlighted two domains seems good for me.
I'm pretty good coming up with short, catchy, available domain names. I just don't have the time to research and come up with one for you for free. But I would advise you to have people to inbox you their suggestions, that way, if it is available, you can register it before someone snatches it up. Good luck.