Steelers’ Rookie Star Derrick Harmon Sidelined 4-6 Weeks with MCL Sprain: Can Pittsburgh’s Defense Survive the Shocking Setback?

Deadspin | Reports: Steelers DT Derrick Harmon out 4-6 weeks with MCL sprainAug 16, 2025; Pittsburgh, Pennsylvania, USA; Pittsburgh Steelers defensive tackle Derrick Harmon (99) sacks Tampa Bay Buccaneers quarterback Kyle Trask (2) during the first quarter at Acrisure Stadium. Mandatory Credit: Charles LeClaire-Imagn Images

After Pittsburgh Steelers rookie defensive tackle Derrick Harmon was carted off the field with a knee injury in Thursday’s preseason win at Carolina, it appears he avoided the worst-case scenario.

Harmon sustained an MCL sprain and will be sidelined four to six weeks, NFL Network and the Pittsburgh Post-Gazette reported Friday.

 

The former Michigan State and Oregon defensive lineman will miss the start of his rookie season, but is reportedly not expected to be placed on injured reserve. That’s great news for the Steelers, who quickly talked about Harmon as an immediate starter when he was taken 21st overall in this year’s NFL draft.

Harmon, who transferred to Oregon ahead of the 2024 season, amassed 45 tackles, 11 tackles for loss, five sacks, two forced fumbles and two fumble recoveries last season for the Ducks, helping them earn the No. 1 seed in the College Football Playoff.

The earlier side of that recovery timetable could have Harmon back as soon as the Steelers’ Week 3 game vs. New England on Sept. 21. If he’s closer to the six-week timetable, that would likely have him making his regular-season debut Oct. 12 vs. Cleveland coming out of the team’s bye week.

 

–Field Level Media

Related Posts

🚨BREAKING: Just 3 Hours After Bills Don’t Re-Sign Him to Make Room for Younger Talents, Beloved Veteran WR Declares He Will Never Return to Buffalo – The Heartfelt Reason That Moved Fans to Tears👇

Buffalo, New York – Reggie Gilliam had never been the loudest name on the Buffalo Bills’ roster, but for years he was one of the most respected….

🚨 STEAL OF THE CENTURY? The Dallas Cowboys May Have Just Pulled Off the Most Shocking Bargain in the NFL. A 10-time Pro Bowler, 11-time All-Pro, and Super Bowl champion is reportedly headed to Dallas for only $7.7 million. If the move delivers, Cowboys fans could be witnessing the arrival of a future Hall of Famer for a fraction of his true value.

Dallas Cowboys Could Target Bobby Wagner as Veteran Leader to Fix Linebacker Problem The Dallas Cowboys entered NFL free agency with a clear priority: strengthen their linebacker…

🔥 BREAKING: Stefon Diggs and Trevon Diggs Could Be Reuniting — This Time in a New England Patriots Uniform. Team sources say the stunning move may bring the star brothers together on the same roster. If it happens, it could instantly become one of the NFL’s most talked-about storylines.

New England Patriots Eye Reunion with Stefon Diggs and Trevon Diggs to Strengthen 2026 Roster The New England Patriots could be preparing for a major roster shakeup…

SAN FRANCISCO BOMBSHELL JUST DETONATED! Adam Schefter Drops a MIND-BENDING Brandon Aiyuk Update That Has 49ers Nation Reeling—Is This the Weirdest Trade Saga Twist Yet, or the Final Nail in the Holdout Coffin?!

The San Francisco 49ers‘ drama with All-Pro WR Brandon Aiyuk appears to be nearing its end. After not playing at all in 2025 due to a knee…

EMOTIONAL BOMBSHELL IN SANTA CLARA! 49ers Just Dropped a HEART-POUNDING Video of Fred Warner & Dre Greenlaw’s TEARFUL Reunion—Brotherhood Restored, Defense Reborn, and the NFC West Just Got a Whole Lot More INTIMIDATING!

The San Francisco 49ers gave Dre Greenlaw a moment on Friday, posting a carousel to Instagram that stopped the scroll. First, Greenlaw and Fred Warner posing together,…

BREAKING IN THE BAY: Dre Greenlaw’s SHOCKING RETURN Just Turned One 49ers Linebacker Into DEAD WEIGHT—San Francisco’s LB Room Now Overflowing With Talent, and This Starter’s Seat Is Suddenly SCORCHING HOT!

The Niners have a lot of excess here. It wasn’t too shocking to see the San Francisco 49ers make an immediate move to reunite with linebacker Dre…