BEREA -- The Browns say quarterback Jason Campbell has been cleared to practice.

The team, however, says Campbell has not yet been cleared to play. Campbell has been sidelined since suffering a concussion against the Steelers on Nov. 24. Head Coach Rob Chudzinski says he encouraged by Campbell's progress.

Campbell will practice today and if passes a concussion test by an independent neurologist he may be able to play on Sunday.

Brandon Weeden, diagnosed with a concussion following last week's game against Jacksonville, has not yet been cleared to practice.

The Browns have not named a starter for Sunday's game against the New England Patriots.

To keep up with the string of injuries at the quarterback position, the Browns have signed additional back-up quarterbacks, Alex Tanney and Caleb Hanie.

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