After playing sparingly through the first three months of the 1985–86 season, Nystrom was accidentally struck in the eye by a high stick from teammate Gerald Diduck in practice on January 5. Unable to play due to the severity of the injury (he suffered two tears of the retina, which nearly cost him his eye and later required surgery), he was thought to have retired, and he served as an assistant coach for the remainder of the season.
