[2][3][4][5] The core group of la Máquina were forwards Juan Carlos Muñoz, José Manuel Moreno, Adolfo Pedernera, Ángel Labruna, and Félix Loustau.
[6] Other players that were part of the attacking line were Aristóbulo Deambrossi, Carlos Peucelle, Alberto Gallo [it], and Renato Cesarini.
The nickname was given to them by Borocotó, a Uruguayan sports journalist working for El Gráfico, after River Plate defeated Chacarita Juniors 6–2 on 12 June 1942.
[9] For their dynamism and rotating positions, La Máquina is often considered a precursor of the famous Clockwork Orange as it was nicknamed the Netherlands national football team that played the 1974 FIFA World Cup.
[1][10] In 1941, River Plate's La Máquina coaches, Renato Cesarini and Carlos Peucelle, started using the left winger Adolfo Pedernera as a man of reference "switching him to a more central and withdrawn role and inviting him to alternate between driving into the box to finish moves off and sitting back to direct them".