In 1988 and 1989, DeJesús played in only five games for the Kansas City Royals, with an 0–1 record. He played 1990 and 1991 with the Philadelphia Phillies, where he went 7–8 and 10–9, respectively. After a sitting out the 1992 season with injuries,[2] DeJesús rehabbed in the Phillies’ farm system, in 1993. In 1994, he returned to the Royals, posting a 3–1 record. DeJesús continued his career in the Royals’ and New York Yankees’ minor league organizations, briefly retiring after the 1996 campaign. In 1998 and 1999, he played in the Independent Leagues.