ALAMEDA, CA - MAY 09: Louis Rankin #41 of the Oakland Raiders works out at the rookie mini-camp at the Raiders training facility on May 9, 2008 in Alameda, California. (Photo by Jed Jacobsohn/Getty Images)

ALAMEDA, CA - MAY 09: Head coach Lane Kiffin of the Oakland Raiders looks on at the rookie mini-camp at the Raiders training facility on May 9, 2008 in Alameda, California. (Photo by Jed Jacobsohn/Getty Images)

ALAMEDA, CA - MAY 09: Michael Bush #29 of the Oakland Raiders works out at the rookie mini-camp at the Raiders training facility on May 9, 2008 in Alameda, California. (Photo by Jed Jacobsohn/Getty Images)

Oakland Raiders quarterback Sam Keller (8) hands off to running back Darren McFadden (20) during football practice Friday, May 9, 2008, at Raiders minicamp in Alameda, Calif.

Oakland Raiders head coach Lane Kiffin attends football practice Friday, May 9, 2008, at Raiders minicamp in Alameda, Calif.

Oakland Raiders' wide receiver Arman Shields runs drills during football practice Friday, May 9, 2008, at Raiders minicamp in Alameda, Calif.

ALAMEDA, CA - MAY 09: Tyvon Branch #33 of the Oakland Raiders works out at the rookie mini-camp at the Raiders training facility on May 9, 2008 in Alameda, California. (Photo by Jed Jacobsohn/Getty Images)

ALAMEDA, CA - MAY 09: First round pick Darren McFadden #20 of the Oakland Raiders works out at the rookie mini-camp at the Raiders training facility on May 9, 2008 in Alameda, California. (Photo by Jed Jacobsohn/Getty Images)

ALAMEDA, CA - MAY 09: Tyvon Branch #33 of the Oakland Raiders works out at the rookie mini-camp at the Raiders training facility on May 9, 2008 in Alameda, California. (Photo by Jed Jacobsohn/Getty Images)

ALAMEDA, CA - MAY 09: First round pick Darren McFadden #20 of the Oakland Raiders works out at the rookie mini-camp at the Raiders training facility on May 9, 2008 in Alameda, California. (Photo by Jed Jacobsohn/Getty Images)

ALAMEDA, CA - MAY 09: Trevor Scott #91 of the Oakland Raiders works out at the rookie mini-camp at the Raiders training facility on May 9, 2008 in Alameda, California. (Photo by Jed Jacobsohn/Getty Images)

ALAMEDA, CA - MAY 09: Arman Shields #84 of the Oakland Raiders works out at the rookie mini-camp at the Raiders training facility on May 9, 2008 in Alameda, California. (Photo by Jed Jacobsohn/Getty Images)

ALAMEDA, CA - MAY 09: Chaz Schilens #82 of the Oakland Raiders works out at the rookie mini-camp at the Raiders training facility on May 9, 2008 in Alameda, California. (Photo by Jed Jacobsohn/Getty Images)

Oakland Raiders' running back Darren McFadden wipes his face with his jersey during football practice Friday, May 9, 2008, at Raiders minicamp in Alameda, Calif.

Oakland Raiders' defensive coordinator Rob Ryan, left, speaks with players during football practice Friday, May 9, 2008, at Raiders minicamp in Alameda, Calif.

Oakland Raiders' Trevor Scott stretches during football practice Friday, May 9, 2008, at Raiders minicamp in Alameda, Calif.

Oakland Raiders' Tyvon Branch runs during football practice Friday, May 9, 2008, at Raiders minicamp in Alameda, Calif.

Oakland Raiders' Tyvon Branch stretches during football practice Friday, May 9, 2008, at Raiders minicamp in Alameda, Calif.

Oakland Raiders' running back Michael Bush runs during football practice Friday, May 9, 2008, at Raiders minicamp in Alameda, Calif.

Oakland Raiders' wide receiver Chaz Schilens makes a catch during football practice Friday, May 9, 2008, at Raiders minicamp in Alameda, Calif.

Oakland Raiders' running back Darren McFadden runs during football practice Friday, May 9, 2008, at Raiders minicamp in Alameda, Calif.

Oakland Raiders' wide receiver Will Buchanon makes a reception during football practice Friday, May 9, 2008, at Raiders minicamp in Alameda, Calif.

Oakland Raiders' running back Darren McFadden carries the ball during a drill at football mini-camp Friday, May 9, 2008, in Alameda, Calif.

NEW YORK - APRIL 26: Darren McFadden poses for a photo after being selected fourth overall by the Oakland Raiders with family and friends during the 2008 NFL Draft on April 26, 2008 at Radio City Music Hall in New York, New York. (Photo by Jim McIsaac/Getty Images)

NEW YORK - APRIL 26: Darren McFadden poses for a photo after being selected fourth overall by the Oakland Raiders during the 2008 NFL Draft on April 26, 2008 at Radio City Music Hall in New York, New York. (Photo by Jim McIsaac/Getty Images)

NEW YORK - APRIL 26: Darren McFadden poses for a photo after being selected fourth overall by the Oakland Raiders with National Football League Commissioner Roger Goodell during the 2008 NFL Draft on April 26, 2008 at Radio City Music Hall in New York City. (Photo by Jim McIsaac/Getty Images)

NEW YORK - APRIL 26: Darren McFadden poses for a photo after being selected fourth overall by the Oakland Raiders during the 2008 NFL Draft on April 26, 2008 at Radio City Music Hall in New York City. (Photo by Jim McIsaac/Getty Images)