Association football
Ƙwallon ƙafa,[1] wanda aka fi sani da ƙwallon ƙafa ko ƙwallon ƙafa, [a] wasa ne na ƙungiyar da ake bugawa tsakanin ƙungiyoyi biyu na ƴan wasa 11 kowanne, waɗanda da farko suna amfani da ƙafafu don tada wata ƙwallon a kusa da filin wasa na rectangular da ake kira filin wasa. Makasudin wasan shine a zura kwallaye fiye da abokan hamayyarta ta hanyar matsar da kwallo sama da layin raga zuwa wata manufa mai siffar rectangular da kungiyar ke kare. A al'adance, an buga wasan sama da rabi na mintuna 45, tsawon lokacin wasan na mintuna 90. Tare da kimanin 'yan wasa miliyan 250 da ke aiki a cikin ƙasashe da yankuna sama da 200, shi ne wasan da ya fi shahara a duniya.[2]