Denver Broncos tight end James Casey (80) is hit by San Francisco 49ers cornerback Kenneth Acker (20) and Corey Lemonier (96) during the first half of an NFL preseason football game, Saturday, Aug. 29, 2015, in Denver.
Denver Broncos tight end James Casey (80) is hit by San Francisco 49ers cornerback Kenneth Acker (20) and Corey Lemonier (96) during the first half of an NFL preseason football game, Saturday, Aug. 29, 2015, in Denver. Jack Dempsey AP
Denver Broncos tight end James Casey (80) is hit by San Francisco 49ers cornerback Kenneth Acker (20) and Corey Lemonier (96) during the first half of an NFL preseason football game, Saturday, Aug. 29, 2015, in Denver. Jack Dempsey AP