The move, with the team also placing wide receiver LaQuan Williams on the injured reserve list, was largely procedural. Lewis tore his triceps in an Oct. 14 victory over the Dallas Cowboys and was placed on the injured list/designated to return. Under that new designation, the team had to activate him because he returned to the practice field three weeks ago.
Lewis isn’t expected to play until the playoffs.
“We will not look at him again for this week. We’ll look at him [for] the playoffs,” Harbaugh said Sunday. “It’s an injury that is a 12- to 16-week injury. So, if you do the math going back, we thought there was a chance. He is progressing really well. I’m not saying he couldn’t have played the last couple of weeks, but it would’ve been risky to re-injure it. The fact that there was some patience on Ray’s part and our part, it turned out well.”