匹兹堡钢人队新任主教练迈克·麦卡锡宣布了训练营的防守训练新规则，防守球员将被禁止进行铲截动作[1]。取而代之的是"闷声防守"（thud up）训练方式，防守球员只需完成位置移动和缠抱动作，但不会将对方摔到地面[1]。
麦卡锡表示，这一改变反映了现代NFL安全规范的演变[1]。他指出："我今天如果还那样做的话，简直就是违法了"[1]。这项决策既符合NFL劳资协议已禁止一天两练的规定[1]，也体现了钢人队"淬火钢铁"的座右铭[1]。训练营将利用GPS监测和视频分析等科技手段优化防守技巧训练[1]，周一在查克·诺尔球场开始首次护具训练[1]。防线阵容包括年满30岁的卡姆·海沃德、T.J.瓦特和贾伦·拉姆齐等球员[1]。
Pittsburgh Steelers head coach Mike McCarthy has announced a training camp policy that prohibits defensive players from executing tackles, instead implementing a "thud up" system where defenders complete positioning and wrapping movements without driving opponents to the ground.[1] McCarthy defended the decision by noting that practicing tackles in the modern era would be problematic, stating "I would be breaking the law if I did that today" when discussing contemporary NFL standards.[1]
The shift reflects evolving safety protocols within professional football. The NFL collective bargaining agreement already prohibits double-session practices, and the Steelers' approach leverages technology including GPS monitoring and video analysis to refine defensive technique without the contact risks of full tackling.[1] Defensive players on the roster—including Cam Hayward, T.J. Watt, and Jalen Ramsey—are all over 30 years old, a factor in the organization's emphasis on player health and injury prevention.[1] The team will begin its first padded practice session Monday at Chuck Noll Field under this framework.[1]