Nfl

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Houston Texans running back Alfred Blue (28) runs against Carolina Panthers defensive back Dezmen Southward (37) and Carolina Panthers defensive end Daeshon Hall (74) during the first half of an NFL preseason football game, Wednesday, Aug. 9, 2017, in Charlotte, N.C. (AP Photo/Jason E. Miczek)

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Houston Texans wide receiver Jaelen Strong (11) runs against Carolina Panthers defensive back Teddy Williams (21) during the first half of an NFL preseason football game, Wednesday, Aug. 9, 2017, in Charlotte, N.C. (AP Photo/Mike McCarn)

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Carolina Panthers wide receiver Kaelin Clay (83) spins against the Houston Texans after making a catch during the first half of an NFL preseason football game, Wednesday, Aug. 9, 2017, in Charlotte, N.C. (AP Photo/Jason E. Miczek)

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Houston Texans linebacker Dylan Cole (51) attempts a tackle on Carolina Panthers wide receiver Kaelin Clay (83) during the first half of an NFL preseason football game, Wednesday, Aug. 9, 2017, in Charlotte, N.C. (AP Photo/Jason E. Miczek)

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Houston Texans running back Alfred Blue (28) runs near Carolina Panthers defensive back Dezmen Southward (37) during the first half of an NFL preseason football game, Wednesday, Aug. 9, 2017, in Charlotte, N.C. (AP Photo/Mike McCarn)

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Carolina Panthers wide receiver Damiere Byrd (18) runs against the Houston Texans during the first half of an NFL preseason football game, Wednesday, Aug. 9, 2017, in Charlotte, N.C. (AP Photo/Mike McCarn)

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Carolina Panthers tight end Greg Olsen (88) runs against Houston Texans free safety Kurtis Drummond (23) during the first half of an NFL preseason football game, Wednesday, Aug. 9, 2017, in Charlotte, N.C. (AP Photo/Jason E. Miczek)

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Carolina Panthers wide receiver Damiere Byrd (18) runs into the end zone for a touchdown against Houston Texans defensive back Marcus Gilchrist (21) during the first half of an NFL preseason football game, Wednesday, Aug. 9, 2017, in Charlotte, N.C. (AP Photo/Mike McCarn)

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Houston Texans running back D'Onta Foreman (27) leaps over Carolina Panthers cornerback Cole Luke (32) during the first half of an NFL preseason football game, Wednesday, Aug. 9, 2017, in Charlotte, N.C. (AP Photo/Jason E. Miczek)

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Houston Texans quarterback Deshaun Watson (4) runs against the Carolina Panthers during the first half of an NFL preseason football game, Wednesday, Aug. 9, 2017, in Charlotte, N.C. (AP Photo/Jason E. Miczek)

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Pittsburgh Steelers quarterback Joshua Dobbs (5) takes a break during an NFL training camp football practice, Wednesday, Aug. 9, 2017, in Latrobe, Pa. (AP Photo/Keith Srakocic)

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Pittsburgh Steelers quarterback Joshua Dobbs (5) passes during drills in an NFL training camp football practice, Wednesday, Aug. 9, 2017, in Latrobe, Pa. (AP Photo/Keith Srakocic)

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Pittsburgh Steelers quarterback Joshua Dobbs (5) passes to running back Knile Davis (34) during an NFL training camp football practice, Wednesday, Aug. 9, 2017, in Latrobe, Pa. (AP Photo/Keith Srakocic)

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Former New England Patriots' Vince Wilfork, center, pauses on the field at Gillette Stadium after formally announcing his retirement from NFL professional football during a news conference, Wednesday, Aug. 9, 2017, in Foxborough, Mass. (AP Photo/Steven Senne)

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Former New England Patriots' Vince Wilfork becomes emotional while speaking to members of the media as he formally announces his retirement from NFL football during a news conference at Gillette Stadium, Wednesday, Aug. 9, 2017, in Foxborough, Mass. (AP Photo/Steven Senne)