Association football

===Ball===
{{main|Ball (association football)}}
[[File:2022-04-24 Fußball, Männer, 3. Liga, 1. FC Magdeburg - FSV Zwickau IMG 4343 by Stepro.jpg|right|thumb|A typical Ball]]
The ball is spherical with a circumference of between {{cvt|68|and|70|cm|in}}, a weight in the range of {{cvt|410|to|450|g|oz}}, and a pressure between {{convert|8.5|and|15.6|psi|atm|1|order=flip|lk=on|abbr=off}} at sea level. In the past the ball was made up of leather panels sewn together, with a latex bladder for pressurisation, but modern balls at all levels of the game are now synthetic.<ref>{{cite web|title=Laws of the Game 2013/2014|url=https://www.fifa.com/mm/document/footballdevelopment/refereeing/81/42/36/log2013en%5fneutral.pdf|archive-url=https://web.archive.org/web/20130717074432/http://www.fifa.com/mm/document/footballdevelopment/refereeing/81/42/36/log2013en_neutral.pdf|url-status=dead|archive-date=17 July 2013|publisher=FIFA}}</ref><ref>{{cite web|url=http://quality.fifa.com/en/Footballs/Football-facts/Football-manufacturing/|title=Football manufacturing|work=FIFA quality program|publisher=[[FIFA]]|access-date=3 July 2014|url-status=dead|archive-url=https://web.archive.org/web/20160904193101/http://quality.fifa.com/en/Footballs/Football-facts/Football-manufacturing|archive-date=4 September 2016}}</ref>