The Oakland Raiders released Aldon Smith on Monday, hours after he reportedly checked into rehab following a domestic-violence incident involving his new fiancee.

San Francisco police responded to a call Saturday night from Smith's fiancee alleging that the former NFL star bit her wrists before climbing out the window and fleeing the scene.

It's unclear why Smith, who re-signed with the Raiders in 2016 on a two-year deal after a nine-game audition, remained on the team's roster. He was largely absent from the organization for the better part of the past two-plus years, and now coach Jon Gruden has officially closed the door on a long-shot return.

This likely signals the end of the NFL line for the 28-year-old Smith, the No. 7 overall pick by the San Francisco 49ers in 2011. He's been on the NFL's suspension list since Nov. of 2015, when he was banned for at least one year following his third DUI arrest, after playing just nine games with Oakland following his release from the Niners.

Smith, the formerly explosive and sinewy pass rusher out of Mizzou who recorded 35.5 sacks in his first 37 games, has been limited to just 27 combined games over the past five seasons. Over that span, he's served multiple substance-abuse suspensions and been arrested several times on charges, from driving under the influence to felony weapon possession to disorderly conduct.

Smith was named first-team All-Pro in just his second season with the Niners, when it appeared he was on a Hall of Fame trajectory. Sadly, he's been in a downward spiral almost ever since, with one of the more naturally-gifted draft prospects of his generation managing to throw it all away.