Larry Fitzgerald of the Arizona Cardinals talks to the media during the VISA Financial Football Press Conference at the Super Bowl Media Center in Phoenix, Arizona on January 28, 2008. (Photo by Ben Liebenberg/NFL.com)

Adrian Peterson of the Minnesota Vikings talks to the media during the VISA Financial Football Press Conference at the Super Bowl Media Center in Phoenix, Arizona on January 28, 2008. (Photo by Ben Liebenberg/NFL.com)

Adrian Peterson plays the Financial Footbal interactive game with kids during the VISA Financial Football Press Conference at the Super Bowl Media Center in Phoenix, Arizona on January 28, 2008. (Photo by Ben Liebenberg/NFL.com)

Larry Fitzgerald plays the Financial Footbal interactive game with kids during the VISA Financial Football Press Conference at the Super Bowl Media Center in Phoenix, Arizona on January 28, 2008. (Photo by Ben Liebenberg/NFL.com)

Larry Fitzgerald plays the Financial Footbal interactive game with kids during the VISA Financial Football Press Conference at the Super Bowl Media Center in Phoenix, Arizona on January 28, 2008. (Photo by Ben Liebenberg/NFL.com)

Adrian Peterson plays the Financial Footbal interactive game with kids during the VISA Financial Football Press Conference at the Super Bowl Media Center in Phoenix, Arizona on January 28, 2008. (Photo by Ben Liebenberg/NFL.com)

Adrian Peterson talks with the media following the VISA Financial Football Press Conference at the Super Bowl Media Center in Phoenix, Arizona on January 28, 2008. (Photo by Ben Liebenberg/NFL.com)

PHOENIX - JANUARY 28: Larry Fitzgerald of the Arizona Cardinals is interviewed during the VISA "Financial Football" press conference at the Phoenix Convention Center on January 28, 2008 in Phoenix, Arizona. (Photo by Domenic Centofanti/Getty Images for VISA)

PHOENIX - JANUARY 28: Adrian Peterson of the Minnesota Vikings is interviewed during the VISA "Financial Football" press conference at the Phoenix Convention Center on January 28, 2008 in Phoenix, Arizona. (Photo by Domenic Centofanti/Getty Images for VISA)

PHOENIX - JANUARY 28: Larry Fitzgerald of the Arizona Cardinals during the VISA "Financial Football" press conference at the Phoenix Convention Center on January 28, 2008 in Phoenix, Arizona. (Photo by Domenic Centofanti/Getty Images for VISA)

PHOENIX - JANUARY 28: Larry Fitzgerald of the Arizona Cardinals during the VISA "Financial Football" press conference at the Phoenix Convention Center on January 28, 2008 in Phoenix, Arizona. (Photo by Domenic Centofanti/Getty Images for VISA)

PHOENIX - JANUARY 28: Adrian Peterson of the Minnesota Vikings reacts with high school students during a mock 'Financial Football' game during the VISA "Financial Football" press conference at the Phoenix Convention Center on January 28, 2008 in Phoenix, Arizona. (Photo by Domenic Centofanti/Getty Images for VISA)

PHOENIX - JANUARY 28: Adrian Peterson of the Minnesota Vikings reacts with high school students during a mock 'Financial Football' game during the VISA "Financial Football" press conference at the Phoenix Convention Center on January 28, 2008 in Phoenix, Arizona. (Photo by Domenic Centofanti/Getty Images for VISA)