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Tag: #herbert chapman

The 1925 Offside Reform and the Genesis of the WM Formation

Football Tactics

3.2σ1925–1930s

The 1925 Offside Reform and the Genesis of the WM Formation

On June 13, 1925, the International Football Association Board (IFAB) reduced the offside requirement from three defending players to two. Prior to this reform, defending teams had mastered the 'one-back game' — a highly negative strategy where one fullback stayed deep while the other stepped up to trap attackers, paralyzing match play with constant offside whistles and depressing goal-scoring. The SFA-proposed change immediately opened up attacking play. On the opening Saturday of the 1925/26 English Division One season, average goals per game rose to 3.7 compared to the 3.1 average of the previous season. Across the entire campaign, first-division goals surged by 43 percent, increasing from 1,192 to 1,703. Recognizing that traditional two-back defenses were now exposed, Arsenal manager Herbert Chapman withdrew his central midfielder into a deep central defensive role to create a third fullback, flanked by two half-backs, with two attacking midfielders supporting a five-man forward line. This structural adjustment layered the team into a 3-2-2-3 shape — resembling the letters 'W' and 'M' — which established the primary tactical template of European football for the next three decades.

1925–1930sRead Account →

The History of Shirt Numbers in Football — From 1928 Debut to Mandatory Assignment

Kit History

99.0σ1928–1939

The History of Shirt Numbers in Football — From 1928 Debut to Mandatory Assignment

Shirt numbering debuted in professional European league football on August 25, 1928. Arsenal's Herbert Chapman introduced numbers for their match against Sheffield Wednesday, while Chelsea hosted Swansea Town wearing numbers. Under this initial system, one team wore numbers 1 through 11, while the other wore 12 through 22. The Football League Management Committee resisted the innovation for over a decade, but finally ruled shirt numbers mandatory for the 1939/40 season, assigning numbers 1 through 11 to the starting lineup based on position. South America's numbered debut came even earlier: Argentina was the first South American country to use numbered jerseys on June 10, 1923, during a friendly match between Scottish touring club Third Lanark and a local combined team called 'Zona Norte'. Both teams wore numbers 1 through 11, a sight that surprised the local crowd. When English club Chelsea toured South America in 1929 wearing numbered kits, local spectators nicknamed them 'Los Numerados' ('the numbered'), marking an early step in the adoption of squad numbers across South America. The 1993/94 season introduced fixed squad numbers in English football, allowing players to choose unconventional numbers — from Cristiano Lupatelli's goalkeeper Number Ten to Jonathan de Guzman's midfielder Number One.

1928–1939Read Account →

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