Sources: Ravens to activate RB J.K. Dobbins (knee) off IR

PITTSBURGH -- The Baltimore Ravens will activate running back J.K. Dobbins off injured reserve on Saturday, league sources told ESPN's Adam Schefter.

To make room for Dobbins, Baltimore is waiving veteran running back Mike Davis, sources added.

The addition of Dobbins could provide a boost to a slumping ground attack.

Dobbins, the Ravens' top back, was placed on injured reserve on Oct. 21 after having arthroscopic surgery on his left knee. He has practiced the past two weeks and has looked stronger running than he did before the procedure.

"I really think that time off and what he was able to take care of is going to make a big impact on his effectiveness," Ravens offensive coordinator Greg…