The San Francisco 49ers announced on Friday that they have signed defensive lineman Solomon Thomas to a four-year deal. With the signing, the 49ers now have all 10 of the team's 2017 draft picks under contract.

Thomas (6-3, 256) was the first of two first-round draft picks (3rd overall) selected by the 49ers in this year's NFL draft out of Stanford University. In three seasons at Stanford, he appeared in 27 games and registered 101 tackles, 11.5 sacks, 25.5 tackles for loss, four fumble recoveries and two touchdowns.

In 2016, Thomas was named Second-Team All-America by USA Today and Third-Team All-America by the Associated Press. In addition, he also earned  First-Team All-Pac-12 honors and the Morris Trophy Award, a prestigious honor voted on by opposing Pac-12 offensive linemen. He appeared in all 13 games and registered 62 tackles, 8.0 sacks, 15 tackles for loss and two fumble recoveries.

As a sophomore in 2015, he appeared in all 14 games for the Cardinal and was named Honorable Mention All-Pac-12 after recording 39 tackles, 3.5 sacks, 10.5 tackles for loss and two fumble recoveries. Thomas did not see action as a freshman in 2014.

A 21-year-old native of Coppell, Texas, Thomas attended Coppell High School.