Hall of Fame Professional Football Player, Coach. He played the offensive tackle position for both the National Football League's Green Bay Packers and Dallas Cowboys during a fifteen year career (1956, 1958-1971). Born Alvis Forrest Gregg, he played football collegiately at Southern Methodist University and was drafted by the Green Bay Packers in the 2nd round of the 1956 NFL Draft. He would go on to be a mainstay of the "vaunted" Packers offensive line of the 1960s that helped the team win five NFL championships and 2 Super Bowls. While with the Packers, he won All-NFL acclaim eight straight years from 1960 through 1967 and was selected to play in nine Pro Bowls. He went on to play for the Packers until 1970, when he joined the Dallas Cowboys. While with the Cowboys, he played in two Super Bowls (V and VI). He retired after the 1971 season. After retiring, he went into coaching, as an assistant, first with the San Diego Chargers in 1973 and then the Cleveland Browns in 1974. In 1975, he became the head coach of the Cleveland Browns and remained in this position until he was let go in 1977. After sitting out the 1978 season, he went to Canada to coach the Toronto Argonauts of the Canadian Football League in 1979. He came back to the National Football League the next year to become the head coach of the Cincinnati Bengals. While with the Bengals, he led the team to the American Football Conference title in 1981 and a trip to Super Bowl XVI, where they lost to the San Francisco 49ers. He coached the Bengals until 1983, when he was allowed to leave the team to coach his old team, the Green Bay Packers. He served the "head man" of the "Pack" until leaving the team in January of 1988. After leaving the Packers, he went back to be head coach of his alma mater, Southern Methodist University. He served in this position until 1990, but remained with the university until 1994 as its athletic director. He later went back to the Canadian Football League as both a head coach and executive. In 1977, he was inducted into both the Pro Football Hall of Fame and the Green Bay Packers Hall of Fame. He was also named to both the NFL's 1960s All-Decade Team and 75th Anniversary All-Time Team. In 2011, he was diagnosed with Parkinson's disease. He passed away after losing a battle with the disease.