Dallas Cowboys nose tackle Josh Brent was arrested early Saturday on suspicion for intoxication manslaughter after a car accident that killed his teammate Jerry Brown.
Brent's car was allegedly traveling at high speed when it hit a curve, said Irving, Texas, police. Authorities said the car flipped over and caught on fire.
When officers arrived at the scene, Brent was dragging Brown from the burning car, officers told reporters. Brown was taken to a hospital, where he was pronounced dead.
Authorities said officers on the scene "believed alcohol was a contributing factor in the crash."
Brent, in his third season with the Cowboys, was taken to jail on one count of intoxication manslaughter, which is considered a second-degree felony that carries a potential two- to 20-year prison sentence.
In a statement, Cowboys owner Jerry Jones said, "We are deeply saddened by the news of this accident and the passing of Jerry Brown."
At this time, our hearts and prayers and deepest sympathies are with the members of Jerry's family and all of those who knew him and loved him."
Brent was scheduled to start Sunday's game against the Cincinnati Bengals. Brown played on the Cowboys' practice squad, according to NFL.com.
It's the second time in a week where the NFL has dealt with tragedy.
Kansas Chiefs linebacker Jovan Belcher shot his girlfriend Kasandra Perkins before driving to Arrowhead Stadium where he fatally shot himself in front of Chiefs general manager Scott Pioli and head coach Romeo Crennel.
CNN Wires contributed to this report.