On Wednesday, the No. 3 seed was eliminated.
Seed and sprout producers can reduce the risk of contamination, the article said, but tainted seeds cannot be eliminated completely.
The lower seeds, on the other hand, are eliminated when they are defeated once.
If the national seed in the bracket is eliminated in the regional stage, the super regional will be bid upon by the two competing teams.
The brothers and first seeds Bob and Mike Bryan are eliminated as well.
Text in italics indicates the round seeds were eliminated.
Their loss meant that for the second consecutive year the AFC's top seed was eliminated in the divisional round.
The top 11 seeds were all eliminated before the semifinal stage, a unique carnage.
Champion seeds are indicated in bold while text in italics indicates the round those seeds were eliminated.
The text in italics indicates the round in which that seed was eliminated.