Unlike the quiet Holmes, the intimidating White and the unparalleled Greene, Greenwood was a showman. While recovering from an ankle injury during the 1973 season, Greenwood wore a pair of high top cleats that a friend painted gold. He wore them twice — both Steelers wins — and went back to his usual cleats after the ankle healed. The Steelers lost the ensuing game, and the gold cleats soon returned.
Knee problems forced Greenwood to retire before the 1982 season. His 13 years in Pittsburgh are tied for the third-longest tenure with the team in franchise history. Greenwood remained in Pittsburgh after his retirement, working as an entrepreneur and motivational speaker.
Despite support from his teammates — including Greene — Greenwood has not been enshrined in the Pro Football Hall of Fame. He was a finalist six times, the last coming in 2006.