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“It’s Only Preseason” - Jaylen Warren Criticizes Steelers’ Standout Rookie RB After Preseason Opener

Pittsburgh, PA – Pittsburgh Steelers’ starting running back Jaylen Warren has spoken out after the team’s 31–25 victory over the Jacksonville Jaguars in their preseason opener.

Steelers training camp: Jaylen Warren glad 'physicality' building; sees  offensive line progress - YouTube

While Warren praised Trey Sermon for his breakout performance — racking up 63 rushing yards, a touchdown, and several powerful runs — he also issued a warning about keeping a level head.

"Trey played really well tonight. No one can take that away from him. He was strong, fast, and kept our offense moving," Warren said.

NFL free agency: Steelers sign former Colts' RB Trey Sermon

But Warren quickly shifted to a cautionary tone:

"This is only preseason 1. In the NFL, it's not just about one good game. You've got to stay humble and focus on the next one. I feel like Trey was riding a little too high after the game. That can kill a career if you don't keep it in check."

Pittsburgh Steelers running back Trey Sermon (27) during a preseason game between the Pittsburgh Steelers and the Jacksonville Jaguars, on Saturday August 9, 2025 in Jacksonville, FL. (Karl Roser / Pittsburgh Steelers)

According to team insiders, Warren's comments were aimed at reminding the rookie that the NFL's grind is unforgiving — and that overconfidence can be dangerous.

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Steelers Sign Elite Kick Returner Raheem Blackshear to Bolster Special Teams Ahead of Week 6, per Adam Schefte
Pittsburgh, PA – October 7, 2025 The Pittsburgh Steelers are adding speed and experience to their return unit ahead of Week 6, signing veteran running back and return specialist Raheem Blackshear to the practice squad — a move that could pay off immediately on special teams. According to ESPN’s Adam Schefter, the signing became official Monday, giving Pittsburgh one of the league’s most efficient returners. During his tenure with the Carolina Panthers (2022–2024), Blackshear averaged an elite 30.4 yards per kick return, ranking among the top marks in the NFL over that span. Source: https://x.com/AdamSchefter/status/1975269946805657996 Blackshear’s proven ability to flip field position could be a game-changer for a Steelers team still searching for stability in the return game. Rookie Kaleb Johnson struggled early, averaging just 23.8 yards per return and losing a costly fumble. Veterans Kenneth Gainwell and Trey Sermon were serviceable, averaging 25.8 and 25.5 yards respectively — but both are now more involved in the offensive rotation. Beyond kickoff returns, Blackshear also brings punt return experience, logging 23 career punt returns with an average of 8.7 yards and a long of 21 yards. His versatility could prove valuable as Calvin Austin III continues to recover from injury. This marks the Steelers’ second practice squad signing on October 6, further reinforcing roster depth before hosting the Cleveland Browns in a key AFC North showdown. Meanwhile, the team remains cautious with cornerback Joey Porter Jr. and edge rusher Alex Highsmith, both working through minor injuries but expected to practice later in the week. For now, all eyes are on Blackshear — whose elite return numbers could soon translate into another hidden weapon for head coach Mike Tomlin. With Pittsburgh emerging from the bye week atop the AFC North, the addition of a proven field flipper could make all the difference in the games ahead.