Sipak bola adolah cabang ulahrago nan manggunokan bola nan dimainkan dek duo tim nan masiang-masiang baranggotakan 11 (sabaleh) urang. Mamasuaki abaik ka-21, olahraga iko alah dimainkan dek labiah dari 250 juta urang di 200 negara, nan manjadikannyo ulahraga paliang populer di dunia.[1][2][3][4] Sipak bola batujuan untuak mancetak gol sabanyak-banyaknyo jo manggunokan bola ka gawang lawan. Sipak bola dimainkan dalam lapangan nan babantuak pasagi panjang, di ateh rumpuik atau rumpuik sintetih.
Sacaro umum, hanyo panjago gawang sajo nan bahak mamacik bola jo tangan atau lengan di dalam daerah gawangnyo, sadangkan 10 (sapulauh) pamain lainnyo diijinkan manggunokan sadoalah badannyo salain tangan, biasonyo jo kaki untuak manyipak, dado untuak mangontrol, jo kapalo untuak manyundua bola. Tim nan mancetak gol paliang banyak pado akhia patandiangan adolah pamenangnyo. Jikok hinggo wakatu barakhia masih barakhia imbang, mako dapek dilakukan undian, papanjangan wakatu maupun adu penalti, tagantuang dari format panyelenggaraan kajuaraan.[5]
Paraturan patandiangan sacaro umum dipabaharui satiok tahunnyo dek induak organisasi sipak bola internasional (FIFA), nan juo manyalanggarokan Piala Dunia satiok ampek taun sakali.[6]
↑Mueller, Frederick; Cantu; Van Camp, Steven (1996). "Team Sports". Catastrophic Injuries in High School and College Sports. Champaign: Human Kinetics. p. 57. ISBN0-87322-674-7. http://books.google.com/books?id=XG6AIHLtyaUC&pg=PA57&lpg=PA57&dq=soccer+most+popular+team+sport&source=web&ots=QzydYB5Am0&sig=w_ouIgmegjytYFfWy7k92guTNfU#PPA57,M1. Diakses pado 26 Januari 2008. "Soccer is the most popular sport in the world and is an industry worth over US$400 billion world wide. 80% of this is generated in Europe, though its popularity is growing in the United States. It has been estimated that there were 22 million soccer players in the world in the early 1980s, and that number is increasing. In the United States soccer is now a major sport at both the high school and college levels"