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.
Kelvin Herrera (chickenpox) pitched two-thirds of an inning Monday against the Twins.
Kelvin Herrera could be out for the next two weeks with chickenpox.
Royals activated RHP Kelvin Herrera.
Kelvin Herrera has his appeal heard with MLB and will serve a six-game suspension.
Kelvin Herrera was given a two-game suspension for his role in Thursday's altercation with the White Sox.
Kevin Herrera has appealed his five-game suspension.
MLB suspended Kelvin Herrera for five games and fined him an undisclosed amount for throwing at Athletics third baseman Brett Lawrie on Sunday.
Kelvin Herrera was ejected from Sunday's game against the Athletics for throwing at Brett Lawrie.
Royals avoided arbitration with RHP Kelvin Herrera by agreeing to a two-year, $4.15 million contract.
According to MLB.com's Jeffrey Flanagan, the Royals are close to a multi-year deal with Kelvin Herrera.