Pitcher Joel Peralta is in, outfielder Terrence Long and righty reliever Nate Field are out.
The Royals claimed Peralta, a right-hander, off the waiver wire from the Angels on Friday. The Royals also announced that Long and Field had elected to become unrestricted free agents.
Peralta, a 29-year-old reliever, was 1-0 with a 3.89 ERA in 28 games as a rookie for the Angels this year. He had 30 strikeouts and 14 walks in 34 2/3 innings, holding right-handed batters to a .178 mark.
He also pitched for Triple-A Salt Lake, going 4-1 with 10 saves and a 2.70 ERA in 20 innings spanning 19 appearances.
In 250 Minor League outings, Peralta is 22-12. He originally signed with the Oakland A's.
The move by Long was expected. The Royals have expressed some interest in re-signing him but, after making $4.7 million this year, he might be out of Kansas City's price range.
Long batted .279 with six home runs, 21 doubles and 53 RBIs. He tied for second among American League outfielders with 12 assists.
Field, a right-hander, was 0-0 with a 9.45 ERA this year for the Royals. He cleared waivers this week and was outrighted to Triple-A Omaha.
Dick Kaegel is a reporter for MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.