Rookie DT Turns Heads at Steelers Training Camp, Earns High Praise from Mike Tomlin

It didn’t take long for first-round pick Derrick Harmon to make his presence felt in Pittsburgh.

The rookie defensive tackle, drafted 21st overall in 2025, has been a standout early in Steelers Training Camp — displaying maturity, explosiveness, and control far beyond his years. His performance has drawn the attention of both teammates and coaching staff, including head coach Mike Tomlin, who didn’t hold back in his praise.

“He’s not playing like a rookie,” Tomlin said.
“He’s mature, physical, and locked in — exactly what we want in the trenches.”

Harmon, who’s expected to step into a significant role following the departure of veteran Larry Ogunjobi, has quickly established himself as a reliable force along the defensive line. Observers noted his burst off the snap, consistent pad level, and ability to disrupt interior blocking — traits that Steelers scouts highlighted pre-draft, and now validated in full pads.

Steelers insiders say Harmon has taken nearly every first-team rep during early practices, signaling that the coaching staff already trusts him as a potential Day 1 starter. His calm demeanor, combined with a relentless work ethic, has impressed even the most seasoned veterans.

“He just gets it,” said one teammate. “He listens, works, and doesn’t talk unless it’s to ask how to be better.”

For a Steelers team looking to reinforce its defensive identity, Harmon might be the exact addition they needed — not just a big body, but a technician with attitude.

If his early camp dominance is any indication, Pittsburgh didn’t just get a first-rounder.
They may have landed the next leader of their defensive front.