The New England Patriots have announced several roster moves on the eve of a critical showdown with the Dolphins in Miami.

For starters, linebacker Eric Alexander has been placed on injured reserve with a hamstring injury.  The fifth-year veteran had appeared in only one game this year, after making appearances in 12 games last season.

To replace Alexander, the Pats signed rookie linebacker Vince Redd from the practice squad to the active roster.

Also, New England downgraded running back LaMont Jordan and cornerback Mike Richardson to “out” for Sunday’s game.

Jordan, signed as a free agent after being cut by the Raiders, has appeared in only four games.  He has carried the ball 24 times for 106 yards, and no touchdowns.