There is only one stadium used for both MLB and NFL games and that is Oakland Coliseum where both the Athletics and Raiders play.
You use a ball. You run. The players get money. There are teams.
Oakland A's and Raiders
Tennis and football are both competitive sports, but other than that, they are hardly the same, and they are not even particularly similar.
The number of fantasy football teams changes daily as more users sign up and create teams. There are thousands of users who use the NFL site to play fantasy football.
Both the Irish soccer and Rugby international teams use Lansdowne Road as their home ground, also called the Aviva Stadium.
Real expensive, fancy, and big hotels
GT Navy Army Airforce
They use Nike at home. While away they use the home teams balls.