Text: A winless season is a regular season in which a sports team fails to win any of their games. The antithesis of a perfect season, this ignominy has been suffered twelve times in professional American football, six times in arena football, three times in professional Canadian football, once each in American professional lacrosse and box lacrosse, more than twenty-five times in major Australian football leagues, over twenty times in top-level rugby league, at least twice in top-level rugby union, and twice in English county cricket.

Question: has there ever been a nfl team with no wins?
yes