SANTA CLARA – Anthony Davis, who never played a snap at any position other than right tackle in his first five NFL seasons with the 49ers, will make the start Monday night at right guard.
And he will also be first in line behind left tackle Joe Staley, too.
"We would probably move Anthony out," 49ers coach Chip Kelly answered Friday when asked who will serve as the team's swing tackle at the start of the regular season.
"That would be our maneuver today."
The 49ers will enter the regular season with four backup offensive linemen. Rookie John Theus is the only reserve lineman who plays tackle. But Theus is likely to be one of the 49ers' seven inactive players.
Reserve Marcus Martin is likely to be among the 49ers' 46 active players due to his ability to step in at center. Guards Andrew Tiller and rookie Joshua Garnett are also options to be active.
If the 49ers need a backup at either tackle position, Davis would take over with either Tiller or Garnett likely to take over at right guard. Garnett worked as a backup at right guard at the beginning of training camp before moving to the left side.
Davis replaced Tiller with the first-team offense at right guard late in training camp. Davis was moved to guard after it was determined Trent Brown would remain as the 49ers' starting right tackle.