Check the wikipedia definitions of "On The Ball" @ http://en.wikipedia.org/wiki/On_the_ball . It shows that it has been TV programs, computer games, films etc one of which was Australian also with green and yellow. Who can forget all those years of ITV''s "On The Ball" where many a Norwich game has been shown. So in my opinion apart from using the Norwich club crest the club have no copytight on the words "On The Ball" or the colours green and yellow. Just change the label from the club crest to something else and continue to brew the beer