The Steel Curtain Four referred to the four defensive tackles of the Pittsburgh Steelers – there was Joe Greene, L.C. Greenwood, Ernie Holmes and Dwight White. The team got their nickname from a 9th grader who had submitted the name “Steel Curtain” through a contest entry at a local radio station. The Steel Curtain Four became the first dominant all-black starting four in league history.
Pittsburgh Steelers Vs. Tennessee Titans Live Stream & Radio: NFL Monday Night (WATCH/LISTEN) http://www.hngn.com/articles/49732/20141117/pittsburgh-steelers-vs-tennessee-titans-live-stream-radio-nfl-monday.htm