Karlos Williams Released by Bills: Latest Details, Comments, Reaction

The Buffalo Bills shook up their running back corps Saturday by releasing second-year player Karlos Williams.

The team announced the move on its official website. 

The Florida State alum is suspended for the first four games of the 2016 season due to a violation of the NFL's substance-abuse policy.

Williams was also in hot water with the Bills after showing up to training camp overweight in June. The 23-year-old chalked it up to overeating during his fiancee's pregnancy, but head coach Rex Ryan expressed disappointment in his conditioning, per ESPN.com's Mike Rodak.

Williams released a statement on Instagram after the release:

Williams also spoke about Bills starter LeSean McCoy:

ESPN.com's Adam Schefter expanded upon Williams' weight issues:

NFL Network's Ian Rapoport added that they were a major contributing factor to Buffalo's decision to part ways with Williams:

The fall from grace was swift for Williams, as he enjoyed a spectacular rookie season in 2015 after getting selected in the fifth round of the NFL draft.

Williams was McCoy's backup, but he still managed to gain more than 600 total yards and score nine touchdowns in just 11 games. He also averaged an impressive 5.6 yards per carry as McCoy's power complement.

Buffalo cut ties with Williams despite the promise he showed as a rookie, and the team's backfield depth likely had something to do with it.

McCoy is the unquestioned starter, while the Bills recently signed veteran Reggie Bush. Also, Mike Gillislee showed flashes by averaging 5.7 yards per tote last year, plus rookie fifth-round pick Jonathan Williams looks like a potential steal.

Williams has a lot to overcome, but if he can return to the form he displayed last year and show the commitment needed to succeed in the NFL, he could prove to be a steal of a signing for a team in need of running back help.

Follow @MikeChiari on Twitter.