Royals and RHP Kelvin Herrera avoided arbitration by agreeing to a one-year, $5.325 million contract.
Kelvin Herrera requested $5.6 million and was offered $5.05 million by the Royals when arbitration figures were exchanged on Friday.
Kelvin Herrera notched his 10th save of the season Friday against the Red Sox.
Kelvin Herrera struck out two in a scoreless inning of work Thursday against the Marlins, earning him his ninth save.
Kelvin Herrera notched a 1-2-3 ninth inning to record his eighth save of the season in Tuesday's win over the Marlins.
Kelvin Herrera struck out two batters and did not allow a baserunner while notching his sixth save of the year on Wednesday versus the Tigers.
Kelvin Herrera nailed down his fifth save of the season with a scoreless ninth inning in Monday's win over the Royals.
Kelvin Herrera struck out two over a scoreless inning of work to earn his third save Tuesday against the Rays.
Kelvin Herrera nailed down his second save of the season with a perfect ninth inning on Monday versus the Rays.
Kelvin Herrera earned his first save of the season Saturday, pitching a perfect ninth inning to preserve a 5-3 win over the Mariners.
Kelvin Herrera gave up two runs in the eighth inning to take a loss to the Blue Jays on Wednesday.
Kelvin Herrera will likely be first in line for saves with Wade Davis (forearm) on the disabled list.
Royals manager Ned Yost indicated that Kelvin Herrera will see more eighth-inning opportunities while Joakim Soria works through a mechanical issue.
Kelvin Herrera will be available out of the bullpen in Game 2 of the World Series on Wednesday.