Nfl

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Defensive lineman Michael Sam participates in the vertical jump during Missouri's pro day for NFL football representatives Thursday, March 20, 2014, in Columbia, Mo. (AP Photo/L.G. Patterson)

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Missouri defensive lineman Michael Sam, center, dances as he jokes with teammates during pro day for NFL football representatives Thursday, March 20, 2014, in Columbia, Mo. (AP Photo/L.G. Patterson)

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Scouts, teammates and media gather to watch former Missouri defensive lineman Michael Sam perform the bench press during pro day for NFL football representatives Thursday, March 20, 2014, in Columbia, Mo. (AP Photo/L.G. Patterson)

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Missouri defensive lineman Michael Sam crosses the finish line while running the 40-yard dash during pro day for NFL football representatives Thursday, March 20, 2014, in Columbia, Mo. (AP Photo/L.G. Patterson)

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Notre Dame quarterback Tommy Rees throws during Notre Dame pro day for NFL football representatives Thursday, March 20, 2014, in South Bend, Ind. (AP Photo/Joe Raymond)

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Notre Dame lineman Zack Martin runs a drill during Notre Dame's pro day for NFL football scouts Thursday, March 20, 2014, in South Bend, Ind. (AP Photo/Joe Raymond)

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Notre Dame defensive lineman Louis Nix runs through a drill during Notre Dame's Pro Day for NFL football scouts Thursday, March 20, 2014, in South Bend, Ind. (AP Photo/Joe Raymond)