Rubuta ci gaba don wannan sakin layi - Saberhagen ya fito daga makarantar sakandare ta Kansas City Royals a zagaye na 19 na Babban Wasannin Baseball na 1982 kuma ya fara buga wasan farko a lokacin da yake da shekaru 19 a ranar 4 ga Afrilu, 1984. Ya yi tasiri nan da nan, ya tattara rikodin 10<unk>11 da 3.48 ERA. Ya karɓi babban wasansa kawai a ranar 23 ga Yuli, 1984, a lokacin wasa na biyu na sau biyu. Ya jefa kwallaye 3 ba tare da ci ba don rufe nasarar 7-2 Royals a kan Blue Jays kuma ya kiyaye nasara ga farawa Frank Wills. 'Yan Royals sun shiga wasan bayan kakar wasa
amma ya yi rashin nasara a hannun Detroit Tigers a gasar zakarun Amurka. Saberhagen ya jefa da kyau a farkon farawar sa, ya ba da gudu biyu a cikin wasa takwas.