STEELCURTAIN
Steel Curtain
The Steel Curtain was the nickname given to the front four of the famous defensive line of the American football team Pittsburgh Steelers during their 1970s dynasty years. This defense was the backbone of the Steelers dynasty, which won 4 Super Bowls . Over the years, the nickname evolved into a reference to the entire defensive squad.The above text is a snippet from Wikipedia: Steel Curtain
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