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Steelers Rookie Derrick Harmon Diagnosed With MCL Sprain, Expected to Miss 4–6 Weeks

The timeline raises roster decisions for Pittsburgh as Week 1 approaches.

Overview

  • Harmon injured his knee in the preseason finale at Carolina and was carted off before being ruled out for the game.
  • Mike Tomlin initially called it a knee sprain, and subsequent reports identified an MCL sprain following evaluations.
  • NFL Network and local reporting place his recovery at roughly four to six weeks, putting his early-season availability in doubt.
  • The absence makes him a candidate for short-term injured reserve under the NFL’s four-game minimum, though no move has been announced.
  • The first-round pick was tracking to start on the defensive line, with short-term depth likely leaning on veterans such as Cameron Heyward, Keeanu Benton and Isaiahh Loudermilk.