Darryl Clack

In addition to TTP, in July 2016, he learned of his early-stage dementia diagnose, due to years of trauma to the head from playing football.

In 1992, he signed with the Orlando Thunder of the World League of American Football. He became the team's starter at running back, tallying 517 rushing yards and 6 touchdowns, while receiving All-World League honors at the end of the season.

On October 4, 1991, he was signed to the practice roster of the Toronto Argonauts of the Canadian Football League. He played in the Grey Cup championship game.

On March 8, 1990, he signed as a free agent with the Cleveland Browns and was released on September 3.

In 1988, he was the NFC's third leading kickoff returner with a 21.6-yard average. The next year, he had just 3 kickoff returns, finishing 2 returns short of Mel Renfro's franchise record of 85. On November 21, 1989, he was waived as part of the rebuilding process, to make room for rookie running back Curtis Stewart who was promoted from the developmental squad.

Clack was selected by the Dallas Cowboys in the second round (33rd overall) of the 1986 NFL Draft, to be the backup and possible successor to Tony Dorsett. Unfortunately for Clack, that was the same year that Herschel Walker arrived to the team from the United States Football League (USFL). The talent level at running back, relegated him to returning kickoffs.

His senior season was cut short when he suffered a fractured right fibula in the second game of the season against Pacific University, sidelining him for 7 games. He returned to play in the 1985 Holiday Bowl, gaining 36 yards on nine carries. He finished his career fifth on the school's All-time rushing list, recording 2,711 rushing yards (fifth in school history), 5.1-yard average, 21 rushing touchdowns, 70 receptions, 840 receiving yards, 3 receiving touchdowns and eleven 100-yard games (Arizona State was 10-1 in those contests).

In 1982, he was named Colorado Prep Athlete of the Year. In 2006, he was inducted into the Colorado Springs Hall of Fame. In 1993, he was inducted into the Colorado High School Hall of Fame.

Clack accepted a football scholarship from Arizona State University. In 1982, he became the first freshman to lead the Sun Devils in rushing in 30 years. His season culminated with the 32-21 win over the University of Oklahoma in the 1983 Fiesta Bowl, with him scoring a third-quarter touchdown. Even as a freshman, his popularity reached a point that metal noisemakers known as "Darryl Clackers", were being sold by stadium vendors. He posted 606 rushing yards, 116 receiving yards and 9 touchdowns.

He was at his best in track and field, winning the state championship in the 100 metres in his junior and senior years. He missed winning in a closed finish as a sophomore, but won the 200 metres and the 400 metres in each of his last three years in high school. He set the state-record time of 10.65 seconds in the 100 metres, 21.22 in the 200 and 47.95 in the 400. He also contributed to Widefield winning team state titles in 1979, 1980 and 1981.

Darryl Earl Clack (born October 29, 1963) is a former American football running back in the National Football League for the Dallas Cowboys. He also was a member of the Toronto Argonauts in the Canadian Football League. He played college football at Arizona State University.