 He started three games as a September call-up in 1988, allowing only 2 runs and 9 hits in 25 innings.In his rookie season of 1989, Milacki led the American League with 36 games started, posting a 14–12 record with a career-best 3.74 ERA.On April 23, 1989, Milacki pitched a rare complete game shutout against the Minnesota Twins in which he faced the minimum 27 batters; he allowed 3 hits and 2 walks.