From 1971 to 1983, Dan Dierdorf had a stellar career with the St. Louis Football Cardinals. He was named all-pro six times, selected as the National Football League’s top offensive lineman three times and was voted to the NFL Team of the Decade for the 1970s. Dierdorf’s broadcasting career began at KMOX radio, serving in a variety of capacities, including host of the nationally-acclaimed “Sports Open Line” program, St. Louis Blues hockey coverage and St. Louis Cardinals football broadcasts. Dierdorf joined CBS sports as a play-by-play announcer for the NFL telecasts in 1985 before switching to color analysis in 1986. In 1987, Dierdorf joined ABC Sports as an analyst of field events during the network’s exclusive coverage of the United States Olympic Trials. He returned to CBS Sports in 1999.