 He made his MLB debut at age 27 on April 10, 1990, with two innings of one-hit relief in a 4-2 loss to the St. Louis Cardinals.Sampen went 9-5 the following season, but had just four MLB victories thereafter.He was traded by the Expos to the Kansas City Royals on Aug. 29, 1992, and was out of baseball by 1994.