All the doping tests carried at the 1998 World Cup proved to be negative. The Doping Test Sub-Committee announced these results on 14 July after a final evaluation of all the specimens taken.
The names of 256 players were drawn by lots at the 64 matches and these players subjected to tests. This represents 35% of the 704 footballers in the 32 World Cup teams. Taking only the finalists into account (France, Brazil, Croatia and the Netherlands), 64% of the players from these four teams had undergone tests for prohibited substances at least once.
It took an average of 1 1/2 hours to carry out the urine tests after each match. The specimens were then immediately despatched by courier to the "Laboratoire Nationale de Dépistage du Dopage" in France (headed by Professor Jacques Deceaurriz) from each venue, taking on average eight hours to reach the main laboratory.
In its report, the Doping Test Sub-Committee of FIFA, comprising the chairman, Professor Lars Peterson (Sweden), MD, the deputy chairman, Professor Jiri Dvorak (Switzerland), MD, and Professor Toni Graf-Baumann (Germany), MD, praised the players and teams for their cooperation, which had undoubtedly helped to ease the doping test procedure.