Derrick Harmon injury update: ‘Knee sprain of some description,’ Mike Tomlin’s statement on defensive tackle has Steelers Nation holding its breath

Pittsburgh Steelers rookie Derrick Harmon suffered a knee injury in the preseason finale. Mike Tomlin called it a “knee sprain of some description” as the first-round pick awaits MRI results. Harmon is expected to miss a few weeks, putting his Week 1 status in doubt. Read the latest Derrick Harmon injury update here.