Appier got the heavy greenhorn campaign for the Royals around 1990, going 12-8 & posting a league's for-right ERA (Ii.76). When a 13-wwithin campaign a next month, attached for the team better, he was the opening day starter in 1992 and posted a 15-8 record sustaining a league's 2nd-right ERA (Deuce.46) for the team that single went 72-90. He got his better campaign around 1993, going 18-8, leading a league within ERA (Two.56), & finishing third in the Cy Young Award balloting. Around 1995, he processed his just everthing-star team.

Despite existence one of a better pitchers around baseball in the period of this period, his accomplishments went largely unrecognized due to swimming for the perennially terrible Royals. He signed an extended-long-run extension prior to a 1997 year, but fallowing the mediocre season he eventually became fed higher using the organization & demanded a trade. An off-year fall ensuant around a torn labrum driven him to miss about the entire 1998 season instead, and he remained by using a team. He was nevertheless unhappy, however, & avid to play by having the challenger, then he was dealt to the Athletics in the midst of the 1999 year.

When a Athletics mass produced their surprsing start at a American League West title in 2000, Appier provided a firm seasoned arm around trend lines of Oakland's getting immature starters, winning Fifteen games. He wasted his exclusively run therein season's ALDS. When Oakland's pitching continued to produce, a veteran was considered spendable & granted loose professional fallowing a year, at which point he signed sustaining a Mets.

Fallowing of these campaign within Future York, Appier wwhen traded to Anaheim as a share of the treat for Mo Vaughn. When a firm regular year by owning the untamed card Angels within 2002, Appier fell apart in postseason, posting the Little phoebe.Forty ERA around the ALDS, running 0-One in the ALCS, & just lasting Sextuplet frame in 2 starts in the Globe Series using an Xi.37 ERA. Appier struggled a as punishment year & was discharged, & he signed using a injury-plagued Royals a share way through the 2003 season, but missed virtually all of 2004 due to injury & briefly retired. He so come away from retirement & was re-signed per Royals to a minor-league contract prior to the 2005 season but failed to produce a team within spring expert instruction. He retired in March 29. Appier threw out a ceremonial foremost pitch at a Royals' house opener around 2005.