St. Louis Cardinals tackle Dan Dierdorf (72) looks to the sideline during an NFL game against the San Diego Chargers at San Diego Stadium, Nov. 15, 1971. The Chargers defeated the Cardinals 20-17. (National Football League)

St. Louis Cardinals tackle Dan Dierdorf (72) poses for a headshot. (National Football League)

St. Louis Cardinals tackle Dan Dierdorf (72) drops back to pass block against the Los Angeles Rams at the Los Angeles Coliseum, Nov. 14, 1976. The Cardinals defeated the Rams 30-28. (National Football League)

St. Louis Cardinals football tackle Dan Dierdorf can�t make David Green�s baseball helmet fit while he plays catch at the baseball Cardinal�s Busch Field spring training camp in St. Petersburg, Fla., March 7, 1982. Dierdorf dropped in on the rain shortened practice just to say hello. (AP Photo/Ray Stubblebine)

ABC-TV announcers Dan Dierdorf and Lynn Swann pose together for a photograph after a news conference in Miami, Jan. 24, 1995. Dierdorf and Swann are both nominees for induction to the Pro Football Hall of Fame this week and will also take part in ABC�s coverage of Super Bowl XXIX. (AP Photo/Beth A. Keiser)

Quarterback Don Moorhead drives off right tackle to gain sight yards to Michigan's 43 during the third quarter of the Rose Bowl game on Jan. 1, 1970 in Pasadena, CA. Helping clear the way is Dan Dierdorf (72). Number 74 for USC is Tony Terry. (Associated Press)

St. Louis Cardinals Hall of Fame tackle Dan Dierdorf watches from the sideline during a 30-28 win over the Los Angeles Rams on November 14, 1976. (National Football League)

Dan Dierdorf, shown in this1975 file photo, was elected Saturday, Jan. 27, 1996 into the Pro Football Hall of Fame. (Associated Press)

Former St. Louis Cardinals great Dan Dierdorf poses with his bust after his induction into the Pro Football Hall of Fame Saturday, July 27, 1996, in Canton, Ohio. (AP Photo/Phil Long)

Offensive tackle Dan Dierdorf blocks for running back Jim Otis of the St. Louis Cardinals in a October 1976 game. (Associated Press)

St. Louis Cardinals Hall of Fame tackle Dan Dierdorf in 1982. (National Football League)

St. Louis Cardinals tackle Dan Dierdorf (72) lines up in a four-point stance against the Los Angeles Rams at the Los Angeles Coliseum, Nov. 14, 1976. The Cardinals defeated the Rams 30-28. (National Football League)