Only 2 from each category was tested. The way it was done:
They bring a box with 6 balls in it; 2 yellow and 4 blue. Then you have to pick a ball. The box is sealed and blinded so you cant see the balls. If you pick a yellow ball then you have to undergo the doping test, and if you pick a white ball then you are clear.
From the under 90KG category only the 1st and 2nd underwent the test; and they both failed so Shahat is the winner.
Also Bahrain team got 4th after the disqualification and Korea 3rd.