Legendary sportscaster Warner Wolf, known for his catchphrase “Let’s go to the videotape,” has sued controversial radio personality Don Imus for age discrimination, alleging that Imus fired the 80-year-old Wolf from his show and replaced him with a younger sportscaster.

Wolf said he was let go from “Imus in the Morning,” which is broadcast from WABC, in 2016 after working for the show as a sports contributor for almost 20 years.