Roki Sasaki was turning heads with his fastball while still in high school. At age 20, in his second pro season pitching for the Chiba Lotte Marines, he threw a perfect game — and tossed eight more perfect innings in his next start. A year later, he was pitching for Samurai Japan at the World Baseball Classic.

Now clad in Dodger Blue, the 23-year-old “Monster of the Reiwa Era” is ready to start a new journey in MLB.

Sasaki, the prized Japanese pitching phenom with a blazing fastball and devastating splitter, slipped into a Los Angeles Dodgers uniform for the first time during his introductory news conference with the team in Los Angeles on Wednesday.