arena football
US /əˈriːnə ˈfʊtbɔːl/
UK /əˈriːnə ˈfʊtbɔːl/

1.
football americano indoor
a version of American football played indoors on a smaller field with padded walls and rebound nets, typically featuring high-scoring games
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We went to watch an arena football game last night; it was very fast-paced.
Siamo andati a vedere una partita di football americano indoor ieri sera; era molto veloce.
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The rules of arena football are designed to encourage more scoring.
Le regole del football americano indoor sono progettate per incoraggiare più punti.