Pittsburgh announced the move without disclosing financial details. The 29-year-old Wallace started the Steelers’ final four games in 2013, all at center.
Wallace was drafted out of Texas A&M by San Francisco in 2008 but didn’t see the field until the following season. He appeared in eight games for Tampa Bay two years ago but was released last offseason. The Steelers scooped him up on a one-year deal and he worked his way into nine contests last fall.
At 6-foot-4, 300 pounds, Wallace has a reputation as a fierce competitor, an attribute that is especially valuable at the line of scrimmage.
Also Tuesday, the Steelers put pen to paper with long snapper Greg Warren, who has been with the team since signing as an undrafted free agent in 2005. Warren’s new deal is for one season, as is the contract of safety Will Allen, which was officially announced after word of it leaked last week.