The football field is Cleveland Browns Stadium.
Our basketball arena is Gund Arena (the owner of the team is/was Gordon Gund).
Our baseball stadium is Jacob's Field (the owner of the Indians at the time was Dick Jacobs).
People are worried, in fact, about what is going to happen with 'the Jake' as we call it, when the naming contract is up. We don't want to see a corporate name go up, but we may end up having no choice in the matter.
Maybe they could do what they did with Lambeau. Instead of naming the field, they sold naming rights to entrance gates. You can enter through the 'Oneida Nation' gate if you want.