Five years after ABC 7 fired him, Mark Giangreco is 'turned loose'

Mark Giangreco has made countless appearances on ESPN 1000’s “Waddle & Silvy” show, in studio and on the phone. But after ABC 7 made him walk the plank in 2021, those in-person segments disappeared with him. Until this year, ESPN 1000 was based in ABC 7’s building downtown on State Street, and Giangreco was – and likely still is – not welcome. “Not allowed in the building,” Giangreco, 74, told the Sun-Times. “I could never just sneak into the radio studio because the way it was set up, you had…