The San Francisco 49ers signed guards Jonathan Cooper and Mike Person this offseason, and welcomed Joshua Garnett back to practice after he spent last season on injured reserve. Veteran Laken Tomlinson, acquired in a trade at the end of training camp, returns to compete for a guard position as well.
Tomlinson appears to be locked in at left guard for the time being, but there are still some question marks. Cooper is finishing up rehab of January MCL surgery, and did not take part in on-field team drills at minicamp.