The San Francisco 49ers signed offensive guard Laken Tomlinson to a three-year contract extension through the 2021 season, the team announced on Friday.
The 6-foot-3, 312-pound Tomlinson was acquired by the 49ers in a trade with the Detroit Lions on Aug. 31, 2017, and started the last 15 games of the season at left guard.
"Laken is a very talented player who has improved consistently since joining the team one week before last year's season opener," 49ers general manager John Lynch said.
"This offseason, his hard work and dedication paid off as he continued to progress and perform at a high level. We were confident we could work out a contract extension with Laken and we are fired up to get that done before training camp."
Tomlinson was selected in the first round (28th overall) of the 2015 NFL Draft out of Duke by Detroit and has appeared in 47 games (39 starts), plus one postseason start in his three-year career.
In 2016, he appeared in all 16 regular-season games with the Lions (10 starts) and started the team's Wild Card playoff game against the Seattle Seahawks.
A 26-year-old native of Chicago, Tomlinson made 52 career starts in four seasons at Duke and as a senior in 2014 he earned First-Team All-American honors and was named First-Team All-ACC for the second consecutive season.