Raiders wide receiver Amari Cooper, left, and quarterback Derek Carr, center, stretch during practice at the team’s training camp Saturday, July 30, 2016, in Napa.
Raiders wide receiver Amari Cooper, left, and quarterback Derek Carr, center, stretch during practice at the team’s training camp Saturday, July 30, 2016, in Napa. Eric Risberg The Associated Press
Raiders wide receiver Amari Cooper, left, and quarterback Derek Carr, center, stretch during practice at the team’s training camp Saturday, July 30, 2016, in Napa. Eric Risberg The Associated Press