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The Ravens have thus far chosen not to dip into the free agent market for a running back to replace Ricky Williams as the man behind Ray Rice, but that may change before the end of training camp.

John Eisenberg of CSNBaltimore.com reports that the team has not seen what they hoped to see from second back candidates Anthony Allen, Bernard Pierce or Damien Berry in training camp. The one back that has impressed is undrafted rookie free agent Bobby Rainey, although Eisenberg points out that he looks to have a similar skill set to Rice and the Ravens might prefer a different look when they decide to change things.

Baltimore hasn’t even played a preseason game yet, so there’s certainly time for one or more of the backs to generate more positive reviews. If they don’t, the Ravens will likely look at some of the experienced players still looking for work.

There are certainly options available for the Ravens. Cedric Benson, Ryan Grant and Cadillac Williams are a few of the veteran backs looking for work right now and there will surely be a few others hitting the open market as teams start making cuts. Benson would be the biggest departure from Rice of those listed, although his apparent unwillingness to take the contract that the market has determined he get could stand in the way of a deal if Baltimore is interested.