The Michigan State Spartans are strengthening their defensive front for the upcoming 2026 campaign. This roster overhaul relies on a combination of experienced veterans and a physically matured sophomore player.

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The 100-pound evolution of Derrick Simmons

Derrick Simmons, a former 4-star recruit from Frankenmuth High School, has undergone a massive physical evolution to meet the demandds of the Big Ten. According to the report, Simmons has transitioned from a 200-plus-pound high school tackle into a 6-foot-3, 305-pound presence. This weight increase from his previous 297 pounds is a strategic move to ensure he can handle the rigors of elite collegiate competition.

Before choosing Michigan State, Simmons weighed offers from Cincinnati, Purdue,and Vanderbilt. During the 2026 spring showcase at Spartan Stadium, coaching staff noted improvements in his footwork and hand placement, suggesting he is ready for a full-time starting role after seeing only 44 defensive snaps in his freshman year.

Nate Roberts and Jay Coenen lead the veteran charge

Veteran presence from Nate Roberts and Jay Coenen will provide the stability needed for the Spartans' defensive identity. Roberts, a 325-pound senior defensive tackle, rmeains the primary line of defense against the run , tasked with crushing running lanes. Complementing this interior strength is Jay Coenen, a 287-pound fourth-year pass rusher.

As the report indicates, Coenen is projected to lead the team's pass-covering responsibilities.. this veteran leadership is intended to provide a foundation as the team navigates the challenges of a high-stakes conference schedule, especially as the roster deals with the thinning depth caused by recent departures.

Replacing Alex VanSumeren and the graduates

Significant roster changes are placing immense pressure on the remaining defensive line core. Michigan State must navigate the exit of Alex VanSumeren,who transferred to USC, as well as the graduation of Ru'Quan Buckley and Jalen Satchell. These departures mean that the burden of maintaining defensive primacy falls squarely on the shoulders of Roberts, Coenen, and Simmons.

The report notes that if this trio fails to produce, the Spartans risk a defensive collapse that could stretch the rest of the team too thinly.. Such a scenario could jeopardize their collective push for another conference title.

Will Hudson Aultman and Jackson Pahl be forced into action?

Depth concerns regarding the Michigan State defensive line remain a primary uncertainty for the 2026 season. While the veteran trio is the current focus, several questions remain regarding the reliability of the bench. If the primary starters face injuries or fatigue, the coaching staff will be forced to rely on newer faces like freshman Hudson Aultman or special-teams standout Jackson Pahl.

It remains unclear how much experience these secondary players have gained to prepare for Big Ten matchups,or if the current roster can withstand a long season without significant attrition among the starters.