The Seleção underwent drug tests early on Friday morning at their hotel in São Paulo, reports UOL.com.
At around 07.00, Fifa officials prepared to test all 23 players in coach Luiz Felipe Scolari’s World Cup squad.
Fifa carries out the tests before the World Cup to ensure that players are not using banned substances.
The players are informed that they are required to take these exams but the date and time cannot be disclosed in advance.
