Pittsburgh Steelers linebackers Levon Kirkland (99) and Greg Lloyd (95) gang up to bring down Dallas Cowboys running back Emmitt Smith (22) during Super Bowl XXX at Sun Devil Stadium in Tempe, AZ on January 28, 1996. (National Football League)

Pittsburgh Steelers wide receiver Yancy Thigpen (82) celebrates a six-yard touchdown reception during Super Bowl XXX at Sun Devil Stadium in Tempe, AZ on January 28, 1996. (National Football League)

Dallas Cowboys running back Emmitt Smith (22) carries the football before being stopped during the Dallas Cowboys 27-17 victory over the Pittsburgh Steelers during the Super Bowl XXX at Sun Devil Stadium in Tempe, AZ on January 28, 1996. (National Football League)

Hall of Fame quarterback Troy Aikman (8) of the Dallas Cowboys throws a pass during the Super Bowl XXX at Sun Devil Stadium in Tempe, AZ on January 28, 1996. (National Football League)

Dallas Cowboys running back Emmitt Smith (22) carries the football before being stopped during the Super Bowl XXX at Sun Devil Stadium in Tempe, AZ on January 28, 1996. (National Football League)

Dallas Cowboys wide receiver Michael Irvin (88) catches a touchdown pass only to have it called back after he was called for offensive interference during the Super Bowl XXX at Sun Devil Stadium in Tempe, AZ on January 28, 1996. (National Football League)

Wide receiver Yancey Thigpen of the Pittsburgh Steelers catches a 6-yard pass from quarterback Neil O'Donnell during the Super Bowl XXX at Sun Devil Stadium in Tempe, AZ on January 28, 1996. (AP Photo/Al Messerschmidt)

Dallas Cowboys teammates celebrate Emmitt Smith�s (22) second touchdown against the Pittsburgh Steelers during Super Bowl XXX at Sun Devil Stadium in Tempe, AZ on January 28, 1996. (AP Photo/Susan Ragan)

Dallas Cowboys quarterback Troy Aikman (8) celebrates his teammate Emmitt Smith's touchdown against the Pittsburgh Steelers in the third quarter during Super Bowl XXX at Sun Devil Stadium in Tempe, AZ on January 28, 1996. (AP Photo/Michael S. Green)

Dallas Cowboys Hall of Fame tight end Jay Novacek (84) is surrounded by Pittsburgh Steelers linebacker Jerry Olsavsky (55), safety Darren Perry (39), and linebacker Greg Lloyd (95) during Super Bowl XXX at Sun Devil Stadium in Tempe, AZ on January 28, 1996. (AP Photo/Tony Tomsic)

Dallas Cowboys Hall of Fame quarterback Troy Aikman (8) gets ready to pass the ball during Super Bowl XXX at Sun Devil Stadium in Tempe, AZ on January 28, 1996. (AP Photo/Tony Tomsic)

Dallas Cowboys coach Barry Switzer gets soaked by Robert Jones (55) after the Cowboys beat the Pittsburgh Steelers 27-17 in Super Bowl XXX at Sun Devil Stadium in Tempe, AZ on January 28, 1996. (AP Photo/Eric Draper)

Dallas Cowboys' Deion Sanders catches a pass while Pittsburgh Steelers' Willie Williams defends during the Super Bowl XXX at Sun Devil Stadium in Tempe, AZ on January 28, 1996. (AP Photo/Tom DiPace)

Dallas Cowboys Barry Switzer in Super Bowl XXX against the Pittsburgh Steelers at Sun Devil Stadium in Tempe, AZ on January 28, 1996. (AP Photo/Tom DiPace)

Dallas Cowboys Bill Bates plays in Super Bowl XXX against the Pittsburgh Steelers at Sun Devil Stadium in Tempe, AZ on January 28, 1996. (AP Photo/Tom DiPace)

Dallas Cowboys Emmitt Smith plays in Super Bowl XXX against the Pittsburgh Steelers at Sun Devil Stadium in Tempe, AZ on January 28, 1996. (AP Photo/Tom DiPace)

Dallas Cowboys Emmitt Smith plays in Super Bowl XXX against the Pittsburgh Steelers at Sun Devil Stadium in Tempe, AZ on January 28, 1996. (AP Photo/Tom DiPace)

Dallas Cowboys Troy Aikman plays in Super Bowl XXX against the Pittsburgh Steelers at Sun Devil Stadium in Tempe, AZ on January 28, 1996. (AP Photo/Tom DiPace)

Dallas Cowboys Daryl Johnston plays in Super Bowl XXX against the Pittsburgh Steelers at Sun Devil Stadium in Tempe, AZ on January 28, 1996. (AP Photo/Tom DiPace)

Dallas Cowboys Deion Sanders plays in Super Bowl XXX against the Pittsburgh Steelers at Sun Devil Stadium in Tempe, AZ on January 28, 1996. (AP Photo/Tom DiPace)

Dallas Cowboys Emmitt Smith plays in Super Bowl XXX against the Pittsburgh Steelers at Sun Devil Stadium in Tempe, AZ on January 28, 1996. (AP Photo/Tom DiPace)

Dallas Cowboys Emmitt Smith plays in Super Bowl XXX against the Pittsburgh Steelers at Sun Devil Stadium in Tempe, AZ on January 28, 1996. (AP Photo/Tom DiPace)

Dallas Cowboys Emmitt Smith plays in Super Bowl XXX against the Pittsburgh Steelers at Sun Devil Stadium in Tempe, AZ on January 28, 1996. (AP Photo/Tom DiPace)

Dallas Cowboys Troy Aikman plays in Super Bowl XXX against the Pittsburgh Steelers at Sun Devil Stadium in Tempe, AZ on January 28, 1996. (AP Photo/Tom DiPace)

Dallas Cowboys Troy Aikman plays in Super Bowl XXX against the Pittsburgh Steelers at Sun Devil Stadium in Tempe, AZ on January 28, 1996. (AP Photo/Tom DiPace)

Dallas Cowboys receiver Michael Irvin (88) can't hang on to a Troy Aikman pass as Pittsburgh Steelers' Carnell Lake (3) defends during the Super Bowl XXX at Sun Devil Stadium in Tempe, AZ on January 28, 1996. (AP Photo/Ed Reinke)