 He went 9-4 with a 3.37 ERA before he was promoted to the main Tigers roster.Ujdur made his debut on August 17, 1980, and finished the season with a win and a 7,59 ERA in nine games.In 1981, he pitched in four games for the Tigers, but spent most of the year with Evansville, where he had a 7-10 record and a 4.09 ERA in 25 starts.