Fidrych tore the cartilage in his knee fooling around in the outfield during spring training in 1977. He picked up where he left off after his return from the injury, but about six weeks after his return, during a July 4 game against Baltimore, he felt his arm just, in his words, "go dead." It was a torn rotator cuff, but it would not be diagnosed until 1985. At the time, Fidrych injured his arm in Baltimore his record was 6 and 2 before the game. He was removed from the game after 5.2 innings right after Eddie Murray hit a two-run home run. The Birds scored six runs in the inning and won the game six to four. Fidrych finished the season 6–4 with a 2.89 ERA and was again invited to the All-Star Game, but he declined the invitation due to injury. Still on the disabled list toward the end of the season, Fidrych worked as a guest color analyst on a "Monday Night Baseball" telecast for ABC; he was subsequently criticized for his lack of preparation, as when play-by-play partner Al Michaels tried talking with him about Philadelphia Phillies player Richie Hebner and Fidrych responded, "Who's Richie Hebner?" As an AL player, Fidrych had never had to face Hebner, who played in the National League.