His Express teammate was future Pro Football Hall of Famer, QB Steve Young.
In 1985, Zimmerman suited up again with the Express, playing in 18 games (starting 17) with a 3-15 club that ended up out of the USFL playoff picture.
This disdain for the sports press came about due to an early incident in his NFL career, after comments made by Zimmerman (which stated both the offense and defense didn't play well enough) were construed to be comments that the defense didn't play well enough that led to teammates ostracizing him for speaking ill of his teammates' performance; this led Zimmerman to decide to boycott the sports media as a result, refusing to do interviews or engage in any sort of interaction with them for the rest of his career.
In 2007 the NFL created “The Broncos O-line rule" in response, requiring all players to talk to the media.
[12] Zimmerman joins Reggie White, Sam Mills, Steve Young, Jim Kelly, Marv Levy, George Allen, Bill Polian, and Sid Gillman as former USFL/AFL league members who are enshrined in the Pro Football Hall of Fame.