Running back Joe Mixon runs a drill at Oklahoma's Pro Day, Wednesday, March 8, 2017, in Norman, Okla. The event is to showcase players for the upcoming NFL football draft. (AP Photo/Alonzo Adams)
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Running back Joe Mixon runs a drill at Oklahoma's Pro Day, Wednesday, March 8, 2017, in Norman, Okla. The event is to showcase players for the upcoming NFL football draft. (AP Photo/Alonzo Adams)
