Jason LaCanfora reports that the San Francisco 49ers will sign Oakland running back / special teams ace Rock Cartwright pending a physical.

Cartwright, who is 32, was drafted by the Washington Redskins in the seventh round of the 2002 NFL Draft out of Kansas State.

In 2006, he broke the Redskins' single season kickoff return yards record with 1,541 yards on 64 returns.

It is important to note that Cartwright is most likely not a replacement for Ted Ginn as a return specialist, but a replacement for Blake Costanzo covering kicks.