fullback
US /ˈfʊl.bæk/
UK /ˈfʊl.bæk/

1.
terzino, difensore
a defensive player in various sports, positioned at the back of the field or close to their own goal.
:
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The fullback made a crucial tackle to prevent a score.
Il terzino ha fatto un placcaggio cruciale per prevenire un punto.
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In American football, the fullback often blocks for the running back.
Nel football americano, il fullback spesso blocca per il running back.