Houston

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Houston Texans head coach Bill O'Brien watches his team during an NFL football minicamp, Tuesday, May 27, 2014, in Houston. (AP Photo/Patric Schneider)

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Houston Texans wide receiver DeAndre Hopkins runs through drills during an NFL football minicamp, Tuesday, May 27, 2014, in Houston. (AP Photo/Patric Schneider)

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Houston Texans wide receiver DeAndre Hopkins walks to practice during an NFL football minicamp, Tuesday, May 27, 2014, in Houston. (AP Photo/Patric Schneider)

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Houston Texans running back Arian Foster walks to practice during an NFL football minicamp, Tuesday, May 27, 2014, in Houston. (AP Photo/Patric Schneider)

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Houston Texans quarterback Case Keenum throws during an NFL football minicamp, Tuesday, May 27, 2014, in Houston. (AP Photo/Patric Schneider)

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Houston Texans outside linebacker Jadeveon Clowney (90) runs through drills during an NFL football minicamp, Tuesday, May 27, 2014, in Houston. (AP Photo/Patric Schneider)

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Houston Texans defensive end J.J. Watt runs through drills during an NFL football minicamp, Tuesday, May 27, 2014, in Houston. (AP Photo/Patric Schneider)