Inside the Dodgers’ seven-year pursuit of Rōki Sasaki, their foothold in Japan and the battle for MLB's next potential pitching star.

With the Dodgers landing the top Japanese prospects in recent years, Mets pitcher Kodai Senga had an idea for how his new team could get more Japanese stars. He suggested a dome.

Japanese starters Yoshinobu Yamamoto and Roki Sasaki are both expected to pitch for the Dodgers on their home soil when the ...