Subscribe | UPI Odd Newsletter Subscribe PITTSBURGH, June 12 (UPI) -- Pittsburgh Steelers receiver Emmanuel Sanders was fired as spokesman of a group's anti-littering campaign when his past littering offense came to light. David Mazza, regional director for the Pennsylvania Resources Council, said Sanders was fired as spokesman of the anti-littering campaign, which is supported by Pittsburgh Mayor Luke Ravenstahl, after officials discovered Sanders had admitted to a littering offense in November 2010, the Pittsburgh Tribune-Review reported Tuesday. Advertisement "We would certainly not have used him as a spokesman for the campaign had we known," Mazza said. Sanders and receiver Antonio Brown admitted to littering charges after they were found to have abandoned empty boxes near a trash container. "We certainly want to hear his side of the story," Mazza said.