ALAMEDA, Calif. (AP) When Amari Cooper arrived at practice this week for the Oakland Raiders, he immediately was drawn to a special guest instructor.
"My first reaction was he's huge. I can understand why they call him Megatron," Cooper said. "He definitely lives up to that."
Former Detroit Lions great Calvin Johnson is spending the week at practice with the Raiders as the guest of offensive coordinator Todd Downing, giving tips to Cooper and the team's other receivers and answering questions about what made him so successful in his NFL career.