In association football, some national and club sides include one or more stars as part of (or beside) the badge (often referred to as a "crest") appearing on their shirt, to represent important trophies the team has previously won. Often this is a unilateral decision by a team itself, rather than a specific privilege earned or sanctioned by any governing body and as such, the relevance of these stars on a club's shirt is somewhat tenuous.
The first team in association football history to adopt a star was Juventus, who added one above their badge in 1958 to represent their tenth Italian Football Championship and Serie A title, at the time, the new national record. This was an extension of the existing convention by which the reigning champions are entitled to display the scudetto on their shirts for the following season. The star was later formally adopted by some organisations as a symbol for ten titles, and the ratio of one star for ten titles has become the "most common" arrangement.
Juventus unofficially won their 30th league title in 2011–12, but a dispute with the Italian Football Federation, who stripped Juventus of their 2004–05 and 2005–06 titles due to their involvement in a 2006 Italian football scandal, left their official total at 28. However, they elected to wear no stars at all the following season. Juventus won their 30th title in 2013–14 and thus earned the right to wear their third star, however, club president Andrea Agnelli stated that the club suspended the use of the stars until another team wins their 20th championship, thus having the right to wear two stars, "to emphasise Juventus' superiority". However, for the 2015–16 season, Juventus reintroduced the stars and added the third star to their jersey as well with new kit manufacturers Adidas.