Yusei Kikuchi is a Japanese professional baseball pitcher currently playing for the Toronto Blue Jays in Major League Baseball (MLB). Known for his high velocity fastball and deceptive slider, Kikuchi originally played for the Saitama Seibu Lions in Nippon Professional Baseball (NPB) before joining the Seattle Mariners in 2019. After three seasons with Seattle, he signed with Toronto in 2022. While his MLB career has been marked by flashes of brilliance interspersed with inconsistency, Kikuchi remains a valuable left-handed arm in the Blue Jays' rotation and continues to work towards harnessing his full potential.