FILE - In this Aug. 27, 2011, file photo, referee Alberto Riveron makes a call in the second quarter of an NFL football preseason game between the Chicago Bears and the Tennessee Titans in Nashville, Tenn. The NFL has promoted Riveron to its head of officiating. Riveron was the senior director of officiating under Dean Blandino, who left the NFL last month. A nine-year game official and former referee, Riveron was born in Cuba. (AP Photo/Frederick Breedon, File)
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