Oakland Raiders quarterback Derek Carr has insisted that new wide receiver Amari Cooper can make a big impact in his first NFL season.
The 21-year-old was the fourth overall pick in the NFL Draft and Carr has praised the form he has shown in pre-season.
He told the Raiders' official website: "He is ridiculous in and out of his breaks. His style of play is perfect for this league.
"He's good at getting on toes and creating separation. He's good at when the ball is in his hands making those fast-twitch movements to make a guy go one way so he can take it to the house. It's just little things that honestly people don't even notice."
Cooper scored 31 touchdowns in three college seasons for Alabama.