Complex sentence: He was Scotland's representative at the 1962,1970 and 1974 World Cups, refereeing two games in 1962, and a single game in each of the other competitions.
Split into simpler sentences: He was Scotland's representative at the 1962,1970 and 1974 World Cups. Davidson refereed four matches over his World Cup career; two games in 1962, and a single game in each of the other competitions.