Former NFL running back Marion Barber III was announced to have passed away by former side Dallas Cowboys on Wednesday evening.
Barber had spent five years with the Cowboys after being drafted by them in the fourth round back in 2005.
A superb season in 2007 earned him a Pro Bowl appearance, although he found himself released by the team in 2010. Barber then moved to the Chicago Bears in 2011 for a season before announcing his retirement in March 2012.
Barber finished his career with 4,700+ rushing yards and 1,300+ receiving yards, with 59 touchdowns to his name.
When announcing the tragic news on Wednesday, the Cowboys said "We are heartbroken by the tragic death of Marion Barber III.
"Marion was an old-school, hard-nosed football player who ran with the will to win every down. He had a passion for the game and love for his coaches and teammates.
"Our hearts go out to Marion's family and friends during this difficult time."
The current cause of Marion's death is unknown.
The Frisco police department confirmed that Barber had been found after responding to a "welfare concern" at his apartment.
"Frisco Police responded to a welfare concern at an apartment believed to be leased by Marion Barber. Frisco Police along with the Collin County Medical Examiner's Office are investigating an unattended death at the location."
The Bears also released a statement regarding their former player on Wednesday:
"We are saddened to learn of the passing of former Bears RB Marion Barber III. Our hearts go out to his family and friends."