Jason Hammel's $12 million mutual option has been declined by the Kansas City Royals, who will pay the 36-year-old right-hander a $2 million buyout.

Hammel set a career-high for losses, going 4-14 with a 6.02 ERA in 18 starts and 21 relief appearances. He was dropped from the rotation in early July after losing six straight starts.

He agreed to a $16 million, two-year contract before the 2017 season and went 12-27 with the Royals.