The Pittsburgh Steelers have signed wide receiver Joey Galloway, the team confirmed this afternoon. Galloway, 38, visited the Steelers in the off-season prior to signing with New England and will replace Limas Sweed on the active roster. Galloway (7 receptions) struggled with the New England Patriots this season and was released at mid-season. As expected the Steelers have signed long snapper Jared Retkofsky to replace Greg Warren on the active roster. Mike Tomlin would not go into specifics regarding Limas Sweed but did claim Sweed has the full support of the team as he is dealing with a personal matter. Polamalu having MRI this afternoon Troy Polamalu is having an MRI this afternoon and the results of the MRI will dictate his available Sunday afternoon. If the results are good, Polamalu is expected to practice this week. Injury Report; Ward has setback?