Michigan's breakout linebacker, Cole Sullivan, shocks the Wolverines by entering the transfer portal after a standout sophomore season.
The opening of the NCAA transfer portal on January 2, 2026, brought a significant shakeup to the Michigan football roster. Among the most notable names to emerge was sophomore linebacker Cole Sullivan. After a breakout 2025 season that saw him evolve from a special teams standout into one of the defense’s most reliable playmakers, Sullivan’s decision to explore his options marks a pivotal moment for a program undergoing a leadership transition under new head coach Kyle Whittingham.
A Rapid Rise in Ann Arbor
Sullivan arrived in Ann Arbor as a four-star prospect in the class of 2024, standing 6-foot-3 and eventually bulking up to 230 pounds. While he spent his freshman year primarily earning his stripes on special teams—where he was named Michigan’s Rookie of the Year—his sophomore campaign in 2025 saw him explode onto the national scene.
When Michigan shuffled its lineup mid-season, moving veteran Jaishawn Barham to the edge, Sullivan seized the opportunity. He finished the 2025 season as the team’s No. 5 tackler, racking up 44 tackles, five tackles for loss, and two sacks. More impressively, he developed a reputation as a "ball hawk," leading the Wolverines with three interceptions and forcing a key fumble in the season finale against Texas in the Citrus Bowl.
What He Meant to the 2025 Wolverines
Sullivan was the glue that held a young Michigan defense together during a year of transition. His versatility allowed defensive coordinator Wink Martindale to utilize him in both run support and pass coverage, where his high football IQ and ability to read plays before they developed stood out.
His impact was most evident in big moments:
• The Big Games: He shared Defensive Player of the Week honors three times for his performances against New Mexico, Nebraska, and Washington.
• Consistency: He recorded six tackles and a tackle for loss in the rivalry game against Ohio State, proving he could perform on the biggest stages.
• Academic Excellence: Off the field, he was an Academic All-Big Ten honoree, embodying the "student-athlete" ideal the program prides itself on.
The Decision and the Future
Sullivan’s entry into the portal comes at a time of uncertainty for Michigan. With the arrival of Kyle Whittingham and the departure of key veterans like Ernest Hausmann, the linebacker room is in flux. Sullivan noted after the Citrus Bowl that the "loss was tough" and acknowledged that "it’s probably not going to be the same group" next year.
While he has officially entered his name to evaluate his options, an ESPN source indicated that a return to Michigan remains possible. Sullivan still has two years of eligibility remaining and projects as one of the top linebackers available in the portal. For Michigan, losing Sullivan would mean losing a foundational piece of their defensive future; for Sullivan, the portal offers a chance to see where his skyrocketing stock can take him.
As the portal window remains open through January 16, all eyes in Ann Arbor will be on whether Coach Whittingham can convince this "tackling machine" that his best path to the NFL still runs through Michigan.