Which teams have the type of quality depth on the interior DL that you think is good?
Here’s what I found on Oklahoma’s 2025 defensive line—including star rankings and player ages—based on the most reliable recent sources:
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Star Rankings for 2025 Sooners D-Line
Preseason SEC positional rankings placed Oklahoma first among SEC teams at defensive line, citing “returning talent like Damonic Williams, Gracen Halton, and R Mason Thomas,” along with depth from Jayden Jackson and David Stone .
A Yahoo! Sports piece also highlighted OU’s projected starting front: R Mason Thomas, Damonic Williams, Jayden Jackson, and **Marvin Jones Jr.** .
Further context from SEC media preview: They ranked Oklahoma second among SEC teams (Alabama was first). They singled out the depth and talent of Williams, Halton, Jackson, Thomas, Marvin Jones Jr., Adepoju Adebawore, and David Stone .
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Roster Depth & Ages — Defensive Line
From the Wikipedia roster for 2025 (updated within the last two days), here’s the defensive line personnel with their class and birth dates/ages:
David Stone – DT – Sophomore – born Nov 20, 2005 → 19 years old
Marvin Jones Jr. – DL (likely DE) – Senior – age not listed (NB: birth date not publicly available)
R Mason Thomas – DE – Senior – born Aug 25, 2004 → 21 years old
Adepoju “PJ” Adebawore – DE – Junior – born circa 2005 → ~19–20 years old
Damonic Williams – DT – Senior – born Sep 4, 2004 → **21 years old (turning 21 on Sep 4, 2025)**
Gracen Halton – DT – Senior – born Jan 27, 2004 → 21 years old
Jayden Jackson – DT – Sophomore – age not specified (birth date not publicly known)
Other depth players include many underclassmen (freshmen/sophomores) whose birth dates are not publicly available yet.
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At-A-Glance Summary
Player Position Class Approx. Age Birth Date
David Stone Defensive Tackle Sophomore 19 Nov 20, 2005
R Mason Thomas Defensive End Senior 21 Aug 25, 2004
Damonic Williams Defensive Tackle Senior 21 Sep 4, 2004
Gracen Halton Defensive Tackle Senior 21 Jan 27, 2004
Adepoju Adebawore Defensive End Junior ~19–20 c. 2005
Marvin Jones Jr. Defensive Line Senior Not known Not listed
Jayden Jackson Defensive Tackle Sophomore Not known Not listed
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Final Notes
Star ranking of the unit: OU’s defensive line is broadly viewed as the top‑ranked in the SEC, or at worst, second—but clearly among the elite due to depth and returning experience .
Ages: Most key players are between 19 and 21 years old. For Marvin Jones Jr. and Jayden Jackson, no public birth dates are available as of now.
Let me know if you'd like details on position-by-position breakdown of the 2-deep depth chart or comparisons with other teams!