PFF's highest-graded Steelers on defense vs. Panthers in preseason finale

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Pro Football Focus has released their preseason Week 3 grades -- and several defensive standouts on the Pittsburgh Steelers were recognized for their elite performance on Thursday against the Panthers, one that saw Carolina's offense shutout in the second half.

Here are the top 10 highest-graded Steelers on defense following the 19-10 victory over the Panthers:

Black's two-sacks against the Panthers was more than deserving of his 91.9 grade -- and his breakout couldn't have come at a better time, as Steelers first-round rookie Derrick Harmon suffered a knee sprain early in the contest.

While the defense shined with a second-half shutout against the Panthers, Pittsburgh's offense also delivered several standout performances and were recognized by PFF -- which fans can view here.

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