FIFA medical committee has announced that every player tested for drugs at the World Cup in Brazil has been cleared of doping after more than 1,000 tests came back negative.
FIFA's chief medical officer Jiri Dvorak said that every player on each of the 32 competing teams, 736 players in total, had provided blood and urine samples for the test.
According to The Guardian, Dvorak said that 777 out-of-competition tests were conducted between 1 March and 11 June plus another 232, four from each of the first 58 matches played in Brazil, since the tournament kicked off on 12 June, and all came back negative.
Dvorak said that they have not found any prohibitive substances either prior to or during the competition.
FIFA said that players from the four remaining teams left in the tournament would be subject to further random testing with the results expected before their team's next game.
The samples have all been flown across the Atlantic to the World Anti-Doping Agency's laboratory in Switzerland after Wada reportedly revoked the accreditation of the drug-testing facility in Rio for failing to comply with international standards.
The last time a player was caught doping at a World Cup was in 1994 when Argentina's Diego Maradona tested positive for ephedrine and was sent home in disgrace, the report added.