The New York Giants played in the Polo Grounds between 1925-1956.
1966
South Africa
American football and what the world calls football which Americans call soccer
1970
In the 2010 world cup a Adidas ball called the Jabulani ball was used.
Adidas Teamgeist.
Adidas Jabulani.
The court could be used to prosecute U.S. leaders and military personnel on political grounds.
Coffee grounds can repel deer, but they do not work on bears.
The game called 'soccer' in the US is termed 'football' in the rest of the world. Similarities between US football and the game termed 'football' by the remainder of the world are: - a ball is used, though the shape is different - there are 11 players - there are officials: a referee and linesmen
The "commons" is the word that comes to mind. Or as you have used already the "grounds" could be used. Or you could be thinking of 'campus'.