Former NFL running back Duane Thomas, who played a pivotal role in the Dallas Cowboys' first Super Bowl victory, has passed away at the age of 77, according to team officials of the Cowboys. Thomas had a remarkable rookie season in 1970, helping the Cowboys reach the Super Bowl with his outstanding performance. However, his time with the team was marked by enigmatic behavior and contract disputes that eventually led to his departure.

Having recorded an impressive 5.3 yards per carry during his rookie campaign, the highest single-season mark in franchise history at the time, Thomas was seeking a pay raise before the 1971 season. Unfortunately, the Cowboys refused to meet his demands, resulting in Thomas being traded to the New England Patriots. However, the deal was later voided by NFL commissioner Pete Rozelle.

Upon his return to Dallas, Thomas adopted an extremely withdrawn and silent persona. He refused to speak to anyone, including teammates and coaches, using only mumbles or grunts to communicate. Despite his aloofness, Thomas continued to shine on the field, leading the NFL in rushing touchdowns and helping the Cowboys secure their sixth consecutive division title in the 1971 season. He proved instrumental in the team's success, especially during their victorious Super Bowl VI matchup against the Miami Dolphins.

During the Super Bowl game, Thomas showcased his exceptional skills, rushing for 95 yards on 19 carries and scoring a crucial 3-yard touchdown. His performance contributed significantly to the Cowboys' resounding 24-3 victory. In his postgame interview, Thomas delivered a brief but memorable response when asked about his speed and agility, prompting laughter from his teammates and the media.

Despite his undeniable talent and impact on the Cowboys' championship win, Thomas's resentment towards the team over his contract issues eventually resulted in his departure before the 1972 season. He did not play at all during the 1972 campaign and finished his career with two relatively quiet seasons with the Washington Football Team.

Although Thomas's NFL career was short-lived and overshadowed by off-field controversies, his legacy as a key contributor to the Cowboys' first championship remains intact. Former teammates and NFL legends praised Thomas for his hard work, athleticism, and unique running style.

Duane Thomas's passing leaves a void in the hearts of football fans who witnessed his extraordinary talent. He will be remembered as a gifted and elusive running back whose impact on the Dallas Cowboys' historic Super Bowl win will always be cherished.