With Trent Williams and Mike McGlinchey set to start on the edges at the two tackle spots, the starters along the interior have yet to be finalized. Head coach Kyle Shanahan recently said those decisions would come in the time leading to Week 1.
The San Francisco Chronicle recently reported that the 49ers have inquired about potential trades for an interior offensive lineman, perhaps bolstering the experienced group of players.
"The 49ers have recently made trade inquiries to add an interior offensive lineman, but a deal doesn't appear imminent, according to league sources," wrote Eric Branch.
According to Adam Schefter of ESPN, the 49ers will host a free-agent guard, John Miller.
The Buffalo Bills made Miller (6-3, 315) a third-round selection (No. 81 overall) out of Louisville in 2015. During his seven NFL seasons, he has also spent time with the Cincinnati Bengals (2019) and Carolina Panthers (2020-21).
Miller has started all 84 games in which he has appeared over his career, including 10 for the Panthers last season. He has started 10-or-more games in all but one season—2017, when he started just four.