Hisashi Iwakuma has agreed to a contract with the Yomiuri Giants in Japan.
Iwakuma, a native of Tokyo, told reporters in September that he was planning to head home for the 2019 season. He signed a minor league deal with the Mariners last November but missed all of 2018 while recovering from a shoulder injury. The 37-year-old right-hander wraps up his MLB career with a 63-39 record, 3.42 ERA, 1.14 WHIP, and 714/185 K/BB ratio in 883 2/3 innings with Seattle. He finished third in the American League Cy Young Award voting in 2013.