It was said during one of the seminars - FIFA's anti-doping team can show up at any time and any place to check up on World Cup participants.

This morning, three doctors and three nurses showed up at the Four Seasons hotel in Chicago, to take BIH's players blood and urine samples for analysis.

Team doctor, Reuf Karabeg: "All the supplements we use went through analysis earlier, and we got the confirmation they are "doping free". This is the usual control, and we expect at least two more before World Cup starts. There's no reason to worry, we have good relations with the players, and they trust us and our guidelines."