Texas A&M’s Tony Jerod-Eddie will attempt to become the latest undrafted defensive lineman to make the 49ers’ roster.

A year after nose tackle Ian Williams and defensive tackle Demarcus Dobbs made the 53-man roster despite being undrafted, the Niners announced the signing of Jerod-Eddie today.

Jerod-Eddie (6-5, 301), the team’s 18th undrafted free agent, was a second-team all-Big 12 pick last year after posting career-highs in tackles (56), tackles for losses (7.0) and sacks (5). He was an honorable-mention all-conference pick as a junior.

Jerod-Eddie will join a roster that includes a glut of young defensive linemen competing for snaps behind the veteran trio of Justin Smith, Ray McDonald and Isaac Sopoaga. The reserves on the line include nose guards Ricky Jean Francois, 25, and Williams, 22, in addition to tackles Will Tukuafu, 28, and Dobbs, 24. The 49ers also signed two other free-agent defensive tackles in Stanford’s Matt Masifilo and Wisconsin’s Patrick Butrym.

* The agent for first-round pick A.J. Jenkins confirmed his client will attend the 49ers’ three-day rookie minicamp, which begins Friday. Jenkins had initially indicated he would miss the minicamp in order to walk in his graduation ceremony at Illinois on Sunday. The Sacramento Bee’s Matt Barrows first reported Jenkins’ change of plans.