 As a left-handed reliever with an unorthodox delivery, he was well-suited to this role, and often faced only one or two batters in each appearance.With Boston in 1992, Fossas made 60 appearances, but due to his specialized use he pitched a total of less than 30 innings.In 1998 he pitched for the Seattle Mariners, Chicago Cubs and returned to the Texas Rangers in what would be his last full year before finishing his career with the New York Yankees in 1999.