 He was drafted by the Montreal Expos in the second round of the 1990 Major League Baseball draft.A year after signing, Haney made his major league debut for the Expos, and pitched for them for 1.5 years, then was traded to the Kansas City Royals on August 29, 1992 with Bill Sampen for Sean Berry and Archie Corbin.Haney pitched for the Royals from 1992 to 1998.