Zach Mettenberger will be released by the San Diego Chargers.

Mettenberger had been outplayed by Mike Bercovici who is an undrafted rookie.

The Chargers claimed Mettenberger off waivers after the Tennessee Titans released him in May. Mettenberger had a relationship with Chargers offensive coordinator Ken Whisenhunt from his time serving as head coach of the Titans.

James Jones has been released by the San Diego Chargers.

Jones never seemed to become comfortable in the Chargers' offense.

Back in March, the Packers informed Jones that they would rather go forward with ascending receivers such as Davante Adams, Ty Montgomery, Jared Abbrederis and Jeff Janis.

Jones will likely be picked up by a team that loses some of their depth at wide receiver later in the season.

Karlos Williams has been waived by the Buffalo Bills.

The NFL announced in July that Williams is suspended for the first four games of the regular season for a violation of the league's substance-abuse policy. He can serve the suspension as a free agent if he is not claimed off waivers or signed by another team.

Williams reported to minicamp in June out of shape.

A fifth-round pick last season, Williams played in 11 games, starting three. He gained 517 yards on 93 carries and scored seven rushing touchdowns in addition to two receiving touchdowns.