MINNEAPOLIS - AUGUST 23: Kevin Williams #93 and Ray Edwards #91 of the Minnesota Vikings sack Ben Roethlisberger #7 of the Pittsburgh Steelers during a preseason NFL game at the Hubert H. Humphrey Metrodome August 23, 2008 in Minneapolis, Minnesota. (Photo by Tom Dahlin/Getty Images)

MINNEAPOLIS - AUGUST 23: Adrian Peterson #28 of the Minnesota Vikings scores a touchdown in the first half of a preseason NFL game against the Pittsburgh Steelers at the Hubert H. Humphrey Metrodome, August 23, 2008 in Minneapolis, Minnesota. (Photo by Tom Dahlin/Getty Images)

MINNEAPOLIS - AUGUST 23: Jeff Reed #3 of the Pittsburgh Steelers kicks a game winning 47 yard field goal during a preseason NFL game against the Minnesota Vikings at the Hubert H. Humphrey Metrodome, August 23, 2008 in Minneapolis, Minnesota. The Steelers won the game 12-10. (Photo by Tom Dahlin/Getty Images)

MINNEAPOLIS - AUGUST 23: Willie Parker #39 of the Pittsburgh Steelers is tackled by E.J. Henderson #56 of the Minnesota Vikings during an pre-season NFL game at the Hubert H. Humphrey Metrodome August 23, 2008 in Minneapolis, Minnesota. (Photo by Tom Dahlin/Getty Images)

MINNEAPOLIS - AUGUST 23: Adrian Peterson #28 of the Minnesota Vikings rushes during a preseason NFL game against the Pittsburgh Steelers at the Hubert H. Humphrey Metrodome August 23, 2008 in Minneapolis, Minnesota. (Photo by Tom Dahlin/Getty Images)

MINNEAPOLIS - AUGUST 23: John David Booty #4 of the Minnesota Vikings passes during a preseason NFL game against the Pittsburgh Steelers at the Hubert H. Humphrey Metrodome, August 23, 2008 in Minneapolis, Minnesota. (Photo by Tom Dahlin/Getty Images)

MINNEAPOLIS - AUGUST 23: Adrian Peterson #28 of the Minnesota Vikings carries the ball during a preseason NFL game against the Pittsburgh Steelers at the Hubert H. Humphrey Metrodome, August 23, 2008 in Minneapolis, Minnesota. The Steelers won the game 12-10. (Photo by Tom Dahlin/Getty Images)

MINNEAPOLIS - AUGUST 23: Kevin Williams #93 of the Minnesota Vikings celebrates a sack during a preseason NFL game against the Pittsburgh Steelers at the Hubert H. Humphrey Metrodome, August 23, 2008 in Minneapolis, Minnesota. The Steelers won the game 12-10. (Photo by Tom Dahlin/Getty Images)

MINNEAPOLIS - AUGUST 23: Ben Roethlisberger #7 of the Pittsburgh Steelers passes during a preseason NFL game against the Minnesota Vikings at the Hubert H. Humphrey Metrodome, August 23, 2008 in Minneapolis, Minnesota. The Steelers won the game 12-10. (Photo by Tom Dahlin/Getty Images)

MINNEAPOLIS - AUGUST 23: Jared Allen #69 of the Minnesota Vikings pursues quarterback Ben Roethlisberger #7 of the Pittsburgh Steelers during a preseason NFL game at the Hubert H. Humphrey Metrodome August 23, 2008 in Minneapolis, Minnesota. The Steelers won the game 12-10. (Photo by Tom Dahlin/Getty Images)

MINNEAPOLIS - AUGUST 23: John David Booty #4 of the Minnesota Vikings scrambles during a preseason NFL game against the Pittsburgh Steelers at the Hubert H. Humphrey Metrodome, August 23, 2008 in Minneapolis, Minnesota. (Photo by Tom Dahlin/Getty Images)

MINNEAPOLIS - AUGUST 23: Rashard Mendenhall #34 of the Pittsburgh Steelers carries the ball during a preseason NFL game against the Minnesota Vikings at the Hubert H. Humphrey Metrodome August 23, 2008 in Minneapolis, Minnesota. (Photo by Tom Dahlin/Getty Images)

MINNEAPOLIS - AUGUST 23: Anthony Smith #27 of the Pittsburgh Steelers carries the ball during a preseason NFL game against the Minnesota Vikings at the Hubert H. Humphrey Metrodome, August 23, 2008 in Minneapolis, Minnesota. (Photo by Tom Dahlin/Getty Images)