Training Camp Practice: 8.14.18

Oakland Raiders quarterback Connor Cook (18) on the field for practice at 2018 Training Camp at The Oakland Raiders Napa Valley Training Complex, Tuesday, August 14, 2018, in Napa, California.

Oakland Raiders running backs coach Jemal Singleton and fullback Keith Smith (41) on the field for practice at 2018 Training Camp at The Oakland Raiders Napa Valley Training Complex, Tuesday, August 14, 2018, in Napa, California.

Oakland Raiders head coach Jon Gruden on the field for practice at 2018 Training Camp at The Oakland Raiders Napa Valley Training Complex, Tuesday, August 14, 2018, in Napa, California.

Oakland Raiders head coach Jon Gruden and running back Doug Martin (28) on the field for practice at 2018 Training Camp at The Oakland Raiders Napa Valley Training Complex, Tuesday, August 14, 2018, in Napa, California.

Oakland Raiders centers and quarterbacks on the field for practice at 2018 Training Camp at The Oakland Raiders Napa Valley Training Complex, Tuesday, August 14, 2018, in Napa, California.

Oakland Raiders cornerback Dexter McDonald (23) on the field for practice at 2018 Training Camp at The Oakland Raiders Napa Valley Training Complex, Tuesday, August 14, 2018, in Napa, California.

Oakland Raiders wide receiver Amari Cooper (89) on the field for practice at 2018 Training Camp at The Oakland Raiders Napa Valley Training Complex, Tuesday, August 14, 2018, in Napa, California.

Oakland Raiders defensive back Antonio Hamilton (32) on the field for practice at 2018 Training Camp at The Oakland Raiders Napa Valley Training Complex, Tuesday, August 14, 2018, in Napa, California.

Oakland Raiders defensive tackle Treyvon Hester (90) on the field for practice at 2018 Training Camp at The Oakland Raiders Napa Valley Training Complex, Tuesday, August 14, 2018, in Napa, California.

Oakland Raiders linebacker Shilique Calhoun (91) on the field for practice at 2018 Training Camp at The Oakland Raiders Napa Valley Training Complex, Tuesday, August 14, 2018, in Napa, California.

Oakland Raiders defensive tackle PJ Hall (92) on the field for practice at 2018 Training Camp at The Oakland Raiders Napa Valley Training Complex, Tuesday, August 14, 2018, in Napa, California.

Oakland Raiders fullback Ryan Yurachek (44) and running back Doug Martin (28) on the field for practice at 2018 Training Camp at The Oakland Raiders Napa Valley Training Complex, Tuesday, August 14, 2018, in Napa, California.

Oakland Raiders safety Dallin Leavitt (45) on the field for practice at 2018 Training Camp at The Oakland Raiders Napa Valley Training Complex, Tuesday, August 14, 2018, in Napa, California.

Oakland Raiders running back James Butler (40) on the field for practice at 2018 Training Camp at The Oakland Raiders Napa Valley Training Complex, Tuesday, August 14, 2018, in Napa, California.

Oakland Raiders offensive tackle Kolton Miller (77), offensive guard Kelechi Osemele (70), and center James Stone (62) on the field for practice at 2018 Training Camp at The Oakland Raiders Napa Valley Training Complex, Tuesday, August 14, 2018, in Napa, California.

Oakland Raiders defensive lineman Tank Carradine (96) on the field for practice at 2018 Training Camp at The Oakland Raiders Napa Valley Training Complex, Tuesday, August 14, 2018, in Napa, California.

Oakland Raiders tight ends coach Frank Smith and tight end Derek Carrier (85) on the field for practice at 2018 Training Camp at The Oakland Raiders Napa Valley Training Complex, Tuesday, August 14, 2018, in Napa, California.

Oakland Raiders running back Chris Warren III (34) on the field for practice at 2018 Training Camp at The Oakland Raiders Napa Valley Training Complex, Tuesday, August 14, 2018, in Napa, California.

Oakland Raiders tight end Lee Smith (86), head coach Jon Gruden, and quarterback Derek Carr (4) on the field for practice at 2018 Training Camp at The Oakland Raiders Napa Valley Training Complex, Tuesday, August 14, 2018, in Napa, California.

Oakland Raiders quarterback Connor Cook (18) and quarterback EJ Manuel (3) on the field for practice at 2018 Training Camp at The Oakland Raiders Napa Valley Training Complex, Tuesday, August 14, 2018, in Napa, California.

Oakland Raiders running back Jalen Richard (30) and linebacker Tahir Whitehead (59) on the field for practice at 2018 Training Camp at The Oakland Raiders Napa Valley Training Complex, Tuesday, August 14, 2018, in Napa, California.

Oakland Raiders cornerback Shareece Wright (35) on the field for practice at 2018 Training Camp at The Oakland Raiders Napa Valley Training Complex, Tuesday, August 14, 2018, in Napa, California.

Oakland Raiders cornerback Gareon Conley (21) on the field for practice at 2018 Training Camp at The Oakland Raiders Napa Valley Training Complex, Tuesday, August 14, 2018, in Napa, California.

Oakland Raiders wide receiver Griff Whalen (13) on the field for practice at 2018 Training Camp at The Oakland Raiders Napa Valley Training Complex, Tuesday, August 14, 2018, in Napa, California.

Oakland Raiders offensive line coach Tom Cable and offensive tackle David Sharpe (71) on the field for practice at 2018 Training Camp at The Oakland Raiders Napa Valley Training Complex, Tuesday, August 14, 2018, in Napa, California.

Oakland Raiders tight end Jared Cook (87) and head coach Jon Gruden on the field for practice at 2018 Training Camp at The Oakland Raiders Napa Valley Training Complex, Tuesday, August 14, 2018, in Napa, California.

Oakland Raiders head coach Jon Gruden and quarterback Derek Carr (4) on the field for practice at 2018 Training Camp at The Oakland Raiders Napa Valley Training Complex, Tuesday, August 14, 2018, in Napa, California.

Oakland Raiders running back Marshawn Lynch (24) and quarterback Derek Carr (4) on the field for practice at 2018 Training Camp at The Oakland Raiders Napa Valley Training Complex, Tuesday, August 14, 2018, in Napa, California.

Oakland Raiders defensive end Mario Edwards Jr. (97) and offensive tackle Kolton Miller (77) on the field for practice at 2018 Training Camp at The Oakland Raiders Napa Valley Training Complex, Tuesday, August 14, 2018, in Napa, California.

Oakland Raiders defensive tackle Maurice Hurst (73) on the field for practice at 2018 Training Camp at The Oakland Raiders Napa Valley Training Complex, Tuesday, August 14, 2018, in Napa, California.

Oakland Raiders cornerback Rashaan Melvin (22) and tight end Jared Cook (87) on the field for practice at 2018 Training Camp at The Oakland Raiders Napa Valley Training Complex, Tuesday, August 14, 2018, in Napa, California.

Oakland Raiders center Rodney Hudson (61) and offensive line coach Tom Cable on the field for practice at 2018 Training Camp at The Oakland Raiders Napa Valley Training Complex, Tuesday, August 14, 2018, in Napa, California.

Oakland Raiders wide receiver and return specialist Dwayne Harris (17) on the field for practice at 2018 Training Camp at The Oakland Raiders Napa Valley Training Complex, Tuesday, August 14, 2018, in Napa, California.

Oakland Raiders defensive tackle Justin Ellis (78) on the field for practice at 2018 Training Camp at The Oakland Raiders Napa Valley Training Complex, Tuesday, August 14, 2018, in Napa, California.

Oakland Raiders running back Jalen Richard (30) on the field for practice at 2018 Training Camp at The Oakland Raiders Napa Valley Training Complex, Tuesday, August 14, 2018, in Napa, California.

Oakland Raiders wide receiver and return specialist Dwayne Harris (17) on the field for practice at 2018 Training Camp at The Oakland Raiders Napa Valley Training Complex, Tuesday, August 14, 2018, in Napa, California.

Oakland Raiders linebacker Emmanuel Lamur (54) and defensive end Arden Key (99) on the field for practice at 2018 Training Camp at The Oakland Raiders Napa Valley Training Complex, Tuesday, August 14, 2018, in Napa, California.

Oakland Raiders linebacker Marquel Lee (55) and linebacker Emmanuel Lamur (54) on the field for practice at 2018 Training Camp at The Oakland Raiders Napa Valley Training Complex, Tuesday, August 14, 2018, in Napa, California.

Oakland Raiders wide receiver Marcell Ateman (88) on the field for practice at 2018 Training Camp at The Oakland Raiders Napa Valley Training Complex, Tuesday, August 14, 2018, in Napa, California.

Oakland Raiders running back Marshawn Lynch (24) signs autographs for fans at practice at 2018 Training Camp at The Oakland Raiders Napa Valley Training Complex, Tuesday, August 14, 2018, in Napa, California.

Oakland Raiders offensive tackle Donald Penn (72) on the field for practice at 2018 Training Camp at The Oakland Raiders Napa Valley Training Complex, Tuesday, August 14, 2018, in Napa, California.

Oakland Raiders kicker Eddy Piñeiro (9), offensive tackle David Sharpe (71), punter Johnny Townsend (5), and offensive guard Kelechi Osemele (70) on the field for practice at 2018 Training Camp at The Oakland Raiders Napa Valley Training Complex, Tuesday, August 14, 2018, in Napa, California.

Oakland Raiders players and coaches on the field for practice at 2018 Training Camp at The Oakland Raiders Napa Valley Training Complex, Tuesday, August 14, 2018, in Napa, California.

Oakland Raiders tight end Jared Cook (87) and quarterback Derek Carr (4) sign autographs for fans after practice at 2018 Training Camp at The Oakland Raiders Napa Valley Training Complex, Tuesday, August 14, 2018, in Napa, California.

Oakland Raiders offensive tackle Brandon Parker (75) signs autographs for fans after practice at 2018 Training Camp at The Oakland Raiders Napa Valley Training Complex, Tuesday, August 14, 2018, in Napa, California.