Mike Iupati returning to practice

SANTA CLARA, Calif. -- There is a chance the San Francisco 49ers will have their entire first-team offense available for the first time this season Sunday at Tampa Bay.

Standout guard Mike Iupati was on the field for a walk-through practice Wednesday.

49ers coach Jim Harbaugh said he expects Iupati, who suffered a sprained MCL on Nov. 17 at New Orleans, to practice this week.

He has been replaced by Adam Snyder. If Iupati stays the course and plays, the 49ers will be at their healthiest of the season.

When Michael Crabtree made his season debut Dec. 1 against St. Louis, Iupati was out and left tackle Joe Staley left the game in the first quarter with a knee injury. Staley played Sunday against Seattle.

Barring any unknown issues this week, 49ers' starting 11 offense could be together as the team tries to clinch an NFC playoff berth Sunday.