Pittsburgh Steelers center Dermontti Dawson looks up from the sideline during an AFC Divisional Playoff game against the New England Patriots on Jan. 5, 1997 in Foxboro, Mass. The Patriots won, 28-3. (AP Photo/Paul Jasienski)

Pittsburgh Steelers center Dermontti Dawson blocks during an AFC Divisional Playoff game won by the Denver Broncos on Jan. 7, 1990, at Mile High Stadium in Denver. (National Football League)

Pittsburgh Steelers center Dermontti Dawson on Pro Bowl Media Day before the AFC's 23-10 victory in the 1999 Pro Bowl in Honolulu, Hawaii. (National Football League)

Pittsburgh Steelers center Dermontti Dawson lines up during the Pro Bowl, a 26-23 AFC overtime victory on Feb. 2, 1997. (National Football League)

Pittsburgh Steelers center Dermontti Dawson at the 1997 Pro Bowl in Honolulu, Hawaii. (National Football League)

Dermontti Dawson competes at the Battle of the Gridiron in January 1997 in Honolulu. (National Football League)

Pittsburgh Steelers center Dermontti Dawson (63) competes at the Battle of the Gridiron on January 30, 1997, in Honolulu, Hawaii. (National Football League)

Pittsburgh Steelers center Dermontti Dawson (63), Miami Dolphins guard Keith Sims (69), and Dolphins tackle Richmond Webb (77) at practice for the NFL Pro Bowl on January 31, 1996, in Honolulu, Hawaii. (National Football League)

Pittsburgh Steelers center Dermontti Dawson at photo day for the NFL Pro Bowl on January 31, 1998, at Aloha Stadium in Honolulu, Hawaii. (National Football League)

Dermontti Dawson in action during the Steelers' 26-16 loss to the Cincinnati Bengals on Oct. 8, 1989, at Three Rivers Stadium. (National Football League)

Former NFL player Dermontti Dawson at the podium during the 2012 NFL Draft at Radio CIty Music Hall in New York on April 27. (Alix Drawec/NFL)

Pittsburgh Steelers center Dermontti Dawson blocks against the Los Angeles Raiders on Nov. 27, 1994 in Los Angeles. The Steelers won the game, 21-3. (AP Photo/Paul Jasienski)

Dawson blocks against the New England Patriots during a 1995 Steelers win in Pittsburgh. (AP Photo/Paul Jasienski)

Dermontti Dawson helps the Pittsburgh Steelers beat the Chicago Bears on Sept. 13, 1998 at Three Rivers Stadium in Pittsburgh. (AP Photos/NFL Photos)

Pittsburgh Steelers center Dermontti Dawson (63) scrambles down the sidelines under the fog during his team's playoff game against the New England Patriots in Foxboro, Mass., Sunday Jan. 5, 1997. The Patriots beat the Steelers 28-3. (AP Photo/Charles Krupa)

Pittsburgh Steelers offensive center Dermontti Dawson (63) sets at the line of scrimmage during a NFL football game against the New England Patriots at Three Rivers Stadium on December 16, 1995 in Pittsburgh. The Steelers won the game 41-27. (AP Photo/Paul Jasienski)

Pittsburgh Steelers offensive center Dermontti Dawson (63) looks up from the field with his helmet up during a NFL football game against the Seattle Seahawks on September 25, 1994 in Seattle. The Seahawks won the game 30-13. (AP Photo/Paul Jasienski)

Dermontti Dawson poses for a photograph with his bust at the 2012 Hall of Fame Enshrinee Ceremony at Fawcett Stadium in Canton, Ohio on August 4, 2012. (Ben Liebenberg/NFL)

Pittsburgh Steelers center Dermontti Dawson (63) in action during a 20 to 23 Steelers win over the Detroit Lions on Sept. 3, 1995 at Three Rivers Stadium in Pittsburgh. (AP Photo/Paul Spinelli)