Future still bright for Tank Carradine

SANTA CLARA, Calif. -- Some thoughts on the San Francisco 49ers' roster moves Tuesday:

Placing defensive lineman Tank Carradine on injured reserve: The rookie season for the 49ers' second-round pick will essentially be a redshirt year. Carradine, the No. 40 overall pick in April's draft, tore his ACL at Florida State in 2012. He was activated last month, but he hasn't been active in a game.

On Tuesday, team doctors determined that he'd be better off concentrating on his rehabilitation than practicing at this point. Barring any sort of setback, Carradine should be ready to make an impact next year.

The 49ers don't lose out on anything this season with this move since Carradine hasn't hit the field and the team is deep on the defensive line. The future remains promising for Carradine, as he remains a draft steal in my opinion.

The signing of guard Ryan Seymour: The 49ers signed Seymour off the Seahawks' practice squad, continuing the roster poaching movement between the two teams.

Seymour was a seventh-round pick from Vanderbilt this year. The team wanted more depth in the interior line with Mike Iupati still trying to come back from a MCL sprain that cost him the past three games. Perhaps this is a sign of a setback for Iupati, but because it is late in the season, if it was a big issue, he'd likely be put on the injured reserve and that didn't happen.

The signing of returner/receiver Devon Wylie to practice squad: He replaces safety Michael Thomas, who was signed to the Dolphins' 53-man roster.

Wylie, a former fourth-round pick of the Chiefs, is a Northern California native who has bounced around several teams (by the way, he was cut from Seattle's practice squad Saturday). The 49ers could use a smallish receiver with return skills, so Wylie is worth a late-season look.