The Buffalo Bills are turning the page on a familiar role in their offense, moving quickly to fill the void left by a longtime contributor.

After parting ways with veteran fullback Reggie Gilliam in a cap-related decision, Buffalo has identified a potential replacement with strong ties to the current coaching staff.

The team has signed Jackson Acker as an undrafted free agent, bringing in a versatile weapon with a unique background.

Acker arrives from Wisconsin, where he developed under the influence of defensive coordinator Jim Leonhard, who previously served as interim head coach during Acker’s emergence as a starter.

That connection could play a significant role in his transition to the NFL.

Unlike a traditional fullback, Acker brings positional flexibility that fits the modern offensive approach.

Over his college career, he lined up at running back, fullback, and even tight end — showcasing his ability to adapt to multiple roles.

That versatility is exactly what Buffalo needs as it continues to evolve its offensive identity.

Gilliam’s departure leaves more than just a roster spot.

He was a key blocker in the run game and a reliable presence on special teams.

Replacing that combination won’t be easy.

But Acker offers a similar blueprint.

He’s known for his toughness, football IQ, and willingness to do the physical work that often goes unnoticed.

Coaches have also praised his leadership and growth, both on and off the field.

That mentality aligns with what the Bills value in role players.

Heading into rookie minicamp, Acker will have a clear opportunity.

With no established fullback currently ahead of him, the path to earning a roster spot is wide open.

If he can contribute on both offense and special teams, he could quickly carve out a role.

For Buffalo, this is a low-cost move with real upside.

And if Acker capitalizes on the opportunity, the Bills may have quietly found the next piece to anchor their evolving backfield.