The Karlos Williams Experience is curtains in Buffalo.

The Bills on Saturday announced that the enigmatic running back has been released.

After arriving to camp out of shape, Williams was also set to serve a four-game suspension to start the year for violating the NFL Policy and Program for Substances of Abuse.

Williams infamously started camp on Buffalo's active/non-football injury list after showing up 20 pounds overweight. The second-year power back admitted in June that he tacked on the extra heft while tending to -- and eating with -- his wife during her pregnancy. A noble gesture, but not what the Bills were expecting.

Coach Rex Ryan, loyal to a fault with his players, assured reporters earlier this month that the back's roster spot was safe, saying: "We're not going to give up on Karlos Williams. I can tell you that."

That changed Saturday -- just hours before the Bills face the Giants -- leaving Buffalo without the runner who plowed for 517 yards and seven rushing touchdowns on just 93 carries as a rookie.

In his absence, Reggie Bush, Mike Gillislee and promising rookie Jonathan Williams will be asked to pick up the slack behind workhorse LeSean McCoy.

While surprising, it's an understandable move by the Bills. The Williams saga was an unnecessary drama for a team that has already been blitzed by the injury bug. Buffalo needs healthy players more than it needs an overweight, suspension-addled back who doesn't appear plugged in to the task at hand.

Credit:http://www.nfl.com/news/story/0ap3000000688067/article/buffalo-bills-release-running-back-karlos-williams