With his first major league season barely in the books, lefty Yusei Kikuchi is already mapping out plans for his 2020 season for the Seattle Mariners."I'm going back to the fastball," Kikuchi said recently.Kikuchi went 6-11 this year with a 5.46 ERA after signing with the Mariners over the winter. The 28-year-old believes his best results came when he was able to establish the fastball.There is an irony in this, since the lefty's career year came in 2017, when he had the most effective fastball of any pitcher who qualified for an ERA title in Japan -- according to data analysis website Delt…READ FULL ARTICLE
