Steelers first-round pick Derrick Harmon was carted off the field after sustaining a knee injury in the team's final preseason game against the Carolina Panthers on Thursday night.

Harmon appeared to sustain the injury as he tried to muscle around guard Brandon Walton . Walton shoved him to the ground as Harmon turned the corner around him, and Harmon fell awkwardly on his right side. The pressure forced Panthers quarterback Jack Plummer to throw under duress, and cornerback James Pierre intercepted him in the end zone.

Harmon was ruled out in the second quarter.

He was tabbed as a starter on the defensive line soon after being taken No. 21 overall in April's draft.

"Being a first-rounder, being an automatic starter as a rookie, yeah," Harmon said of feeling pressure as a ro

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