One week after center Jeremy Zuttah played his way off the 49ers’ roster in short order, he ended up back with the team that got rid of him to open the offseason.

The Baltimore Ravens on Friday announced the signing of Zuttah, whom the 49ers released on Aug. 9 after acquiring him from the Ravens in a March trade.

The 49ers determined center Daniel Kilgore was clearly better than Zuttah. Moreover, Zuttah he did not demonstrate any promise of being an asset at either of the guard positions.

Zuttah, 31, played the past three seasons with the Ravens after six seasons with the Tampa Bay Buccaneers. Zuttah was named to his first Pro Bowl after last season.

The 49ers originally acquired Zuttah in a swap of sixth-round draft picks. The Ravens received the 49ers’ pick at No. 186 and selected Virginia Tech safety Chuck Clark. The 49ers took over Baltimore’s selection at No. 198 and chose Mississippi defensive tackle D.J. Jones.

The 49ers are confident in Kilgore and offensive tackles Joe Staley and Trent Brown. However, there is concern at the guard positions.

Brandon Fusco appears to be earning the confidence of the coaching staff at right guard. But left guard remains a concern. Zane Beadles is currently the starter while Joshua Garnett rehabs from arthroscopic knee surgery to repair cartilage. The 49ers are hopeful Garnett will be available for the opening of the regular season.