Washington Redskins offensive line coach Bill Callahan gestures as he works with players during NFL football minicamp at Redskins Park, Wednesday, June 17, 2015, in Ashburn, Va. (AP Photo/Pablo Martinez Monsivais) **FILE**
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Washington Redskins offensive line coach Bill Callahan gestures as he works with players during NFL football minicamp at Redskins Park, Wednesday, June 17, 2015, in Ashburn, Va. (AP Photo/Pablo Martinez Monsivais) **FILE**
