The 1970 FIFA World Cup™ is generally remembered for its champions: a brilliant Brazil team widely regarded as the greatest of all time.

However, the Mexico-held tournament was also notable for other developments, including the first-ever substitution at a World Cup.

That historic switch was made in the opening match by USSR coach Gavriil Kachalin, with Anatoli Puzach sent on at half-time for Viktor Serebryanikov in the Soviets’ 0-0 draw with the hosts.