When the 49ers signed veteran guard Mike Person to a three-year contract extension a week before the start of the free-agent signing period, the club seemingly filled a draft need long before the draft.
The 49ers, it appeared, already had their starting offensive line for the 2019 season:
Left tackle Joe Staley
Left guard Laken Tomlinson
Center Weston Richburg
Right guard Mike Person
Right tackle Mike McGlinchey