September - There is a split in Irish football following the political partition of Ireland. The leading Dublin clubs breakaway from the Belfast-based Irish Football Association over a perceived northern bias. See:FAI - Split from the IFA
Argentina: Club Atlético Huracán, Racing Club
Austria: Rapid Vienna
Belgium: Daring CB
Denmark: Akademisk Boldklub
England: Burnley F.C.
France: no national championship
Germany: 1. FC Nuremberg
Hungary: MTK Hungária FC
Italy: Pro Vercelli
Luxembourg: Jeunesse Esch
Netherlands: NAC Breda
Paraguay: Club Guaraní
Scotland: For fuller coverage, see 1920-21 in Scottish football.
Scottish Division One – Rangers
Scottish Cup – Partick Thistle
Sweden: IFK Eskilstuna
Greece: 1913 to 1921 - no championship titles due to the First World War and the Greco-Turkish War of 1919-1922.
1921 British Home Championship (October 23, 1920 – April 9, 1921)
South American Championship 1921 in Argentina (October 2, 1921 – October 30, 1921)
February 10 – Theodor Reimann, Slovak international footballer (died 1982)
July 26 – Amedeo Amadei, Italian international footballer and manager (died 2013)
October 19 – Gunnar Nordahl, Swedish international footballer (died 1995)
1921 in association football Wikipedia
The following are the football (soccer) events of the year 1921 throughout the world.