BEREA, Ohio -- The Browns continued to tinker with the bottom of their roster Sunday, cutting quarterback Rex Grossman and receiver Charles Johnson, and adding receiver LaRon Byrd and running back Glenn Winston off waivers from Dallas and San Francisco, respectively.

The club also waived offensive linemen Karim Barton and Martin Wallace

In addition, they were awarded offensive linemen Caylin Hauptmann (Seattle) and Ryan Seymour (San Francisco) off waivers.

The Browns also signed six players to their practice squad: quarterback Connor Shaw, offensive lineman James Brown, defensive lineman Jacobbi McDaniel, tight end Emmanuel Ogbuehi, and linebackers Keith Pough and Justin Staples.

The departure of Grossman leaves only two quarterbacks on the 53-man roster in Brian Hoyer and Johnny Manziel, and then Shaw on the practice squad. Pettine indicated that Grossman might also land back with the team at some point.

The claiming of Winston is somewhat controversial, considering he's been jailed twice, once in 2009 and 2010.

According to csnbayarea.co, Winston was kicked out of Michigan State in 2009 after two physical assaults in less than a year and was sentenced to six months in jail in 2010. He also spent four months in jail in 2009 for a previous incident.

Winston is the third rookie running back on the roster, including third-round pick Terrance West and undrafted rookie Isaiah Crowell.

Originally signed as an undrafted rookie by the 49ers out of Division II Northwood University, Winston led the 49ers in rushing during the preseason with 113 yards on 19 carries with one touchdown.

Byrd (6-4, 220) is in his is 6-4, 220 pounds and in his third NFL season out of Miami. He was originally signed by the Cardinals as an undrafted free agent in 2012. In four games as a rookie, he caught one pass for 8 yards and added two special-teams tackles.

Last season, Byrd suffered a concussion that cost him the entire season.

In preseason, Byrd caught seven passes for 103 yards with a touchdown for the Cowboys. At Miami, he totaled 106 receptions for 1,254 yards and seven touchdowns.

Hauptmann (6-3, 300) originally signed with the Browns as an undrafted free agent out of Florida International last year. He spent the first two weeks of the season on the Browns' practice squad before being signed to Seattle's active roster. He was inactive for 10 games and dressed but did not play in three more.

Seymour (6-4, 305) was originally drafted by the Seahawks in the seventh round of the 2013 draft out of Vanderbilt. He spent the first 14 weeks of his rookie season on the Seahawks' practice squad. He was signed to the 49ers' active roster and was inactive for the final three games.

McDaniel, Ogbuehi, Pough and Staples were each in camp with the Browns this year. Brown is entering his third NFL season out of Troy. He spent the past two seasons with the Bears and has appeared in five games.

In other Browns new today:

* Cornerbacks Joe Haden (foot), Buster Skrine (thumb surgery) and Pierre Desir (knee) all returned to practice after extended absences. However, the team was in shorts and no pads.

* Defensive end Desmond Bryant (wrist surgery) rode the bike today.

* Four players cut by the Browns on Saturday were awarded to other teams on waivers Sunday. They are cornerback Leon McFadden (Jets), guard Garrett Gilkey (Bucs), guard Donald Hawkins (Cowboys) and tight end MarQueis Gray (Vikings).

* Former Browns offensive line coach George Warhop, who now works for the Bucs, pushed for Gilkey to be drafted by the Browns in the seventh round last year, a source said. The two are now re-united in Tampa Bay.