Chris Young, Kansas City's winning pitcher in the 2015 World Series opener, had been designated for assignment.
Reliever Neftali Feliz agreed to a one-year contract with the Royals on Friday, four days after he was released by Milwaukee.
Young had a 7.50 ERA in two starts and 12 relief appearances allowing 47 hits, including seven home runs and 18 walks in 30 innings. He went 3-9 with a 6.19 ERA last year.
The 38-year-old right-hander was 1-0 with a 2.87 ERA in four games in the 2015 postseason, including three scoreless innings in the opener against the New York Mets. He is guaranteed a $5.75 million salary this year as part of an $11.5 million, two-year contract.
Feliz had eight saves in nine chances for the Brewers before losing the closer's job and went 1-5 with a 6.00 ERA in 29 appearances. The 29-year-old was the 2010 AL Rookie of the Year with Texas and is 20-19 with 107 saves and a 3.43 ERA in 337 major league appearances.
He was guaranteed $5.35 million in his deal with the Brewers, and the Royals will pay $292,350 — a prorated share of the $535,000 minimum — with Milwaukee responsible for the rest.
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