Duane Thomas, the legendary former Dallas Cowboys running back known for his pivotal role in the team’s first Super Bowl victory, has passed away at the age of 77. Thomas’ death was confirmed by the Dallas Morning News, though the cause remains undisclosed.

Thomas, who played a crucial role in the Cowboys’ 24-3 Super Bowl VI win over the Miami Dolphins, was remembered fondly by his former teammates. Thomas “Hollywood” Henderson took to Facebook to pay tribute, writing, “The Great Duane Thomas passed away yesterday. He was a great Cowboy. On his comeback, he was one of my roommates in Thousand Oaks. Lots of laughs and moments. RIP DUANE THOMAS.”

Thomas made an indelible mark on the Cowboys’ storied history during his rookie season in 1970. He led the team with 803 rushing yards and was a standout performer in the playoffs, showcasing his talent against the Detroit Lions and San Francisco 49ers. Despite his impressive on-field contributions, his time with the Cowboys was marred by controversy.

In the offseason following his rookie year, Thomas made headlines for criticizing the Cowboys’ management after they refused to renegotiate his contract. His outspoken remarks included labeling head coach Tom Landry a “plastic man,” which did not sit well with the organization. The fallout from his comments led to his being traded to the New England Patriots. However, the trade was famously voided by then-NFL Commissioner Pete Rozelle.

Back with the Cowboys but disillusioned, Thomas chose to remain silent throughout the 1971 season. He famously remarked in 1988, “I’m remembered for my silence. Everywhere I go, people say, ‘Why didn’t you say anything, Duane?’” Despite his silence, his performance spoke volumes.

In 1971, Thomas led the league with 11 rushing touchdowns and a total of 13 touchdowns, including a crucial touchdown in each of Dallas’ three postseason games. His performance in Super Bowl VI cemented his legacy as a key player in the Cowboys’ first-ever championship win.

During the post-Super Bowl celebrations, CBS broadcaster Tom Brookshier inquired if Thomas was as fast as he looked. Thomas’ terse response, “Evidently,” has since become a memorable quote in football lore. Although Thomas was a strong candidate for the Super Bowl MVP award, the honor ultimately went to quarterback Roger Staubach, reportedly because Staubach was expected to deliver a speech—a tradition not shared by Thomas.

Thomas’ Cowboys career ended in 1972 when he was traded to the San Diego Chargers. However, he was suspended by the team for failing to report, and he never played for the Chargers. He later had brief stints with the Washington Redskins and the Hawaiians of the World Football League before returning to the Cowboys and Packers in unsuccessful comeback attempts.

After leaving professional football, Thomas took on various jobs, including carpentry and moving services. His candid quote about the Super Bowl, “If it’s the ultimate [game], how come they’re playing it again next year?” reflects his unique perspective on the sport and his enigmatic persona.

Thomas’ legacy as a key figure in the Cowboys’ history endures, and his impact on the game will not be forgotten. His passing marks the end of an era for a player whose career was as compelling as it was controversial.