Though a 3rd place play off was not played at the World Cup until 1934, accounts differ as to whether a third-place match was originally scheduled. Some sources state that Yugoslavia refused to play a third-place match because they were upset with the refereeing in their semi-final against Uruguay. A FIFA technical committee report on the 1986 World Cup included full retrospective rankings of all teams at all previous World Cup finals; this report ranked the United States third and Yugoslavia fourth, due to a better goal difference on otherwise identical records, a practice since continued by FIFA.