Jacobs joins defensive end Adisa Isaac as the latest impact defender to announce their return for next season.
The Nittany Lions are ranked as high as No. 4 in the country in some "way too early" top 25 polls.
In the 17 years since playing for Penn State, Lowry spent three seasons in the NFL followed by time on coaching staffs at Baylor and Tulsa.
With a potential neutral site for the AFC Championship up in the air, there's one perfect answer no one is talking about.
Penn State is one of three Big Ten teams ranked in the poll, joining Michigan (No. 3) and Ohio State (No. 4).
The Leishman Trophy will be on display from noon to 1 p.m. on Tuesday, January 10, in the HUB.