Roki Sasaki entered the majors with a reputation forged in Japan, where he was christened the ‘Monster of the Reiwa Era’ after shattering the high school velocity record. The right‑hander’s early promise was evident in NPB, where he posted a 2.10 ERA and amassed 505 strikeouts, drawing comparisons to the league’s elite.
His move to the United States, however, got off to a turbulent start. A dip in fastball speed and control led to a shoulder injury, and in his first eight outings he posted a 4.72 ERA, prompting questions about whether his premium stuff could translate across the Pacific.
A turning point arrived in September 2025 when the Dodgers shifted him to a relief role. The move allowed Sasaki to rediscover his fastball, which climbed back into the high‑90s, and to experiment with new pitch mixes.
The following season he introduced a sharp splitter and a reinvented slider, weapons that have become the backbone of his recent success. In June he delivered a masterpiece start, striking out ten batters while commanding his pitches with precision.
A new chapter in Los Angeles
Today, Sasaki is viewed not just as a promising arm but as a cornerstone of the Dodgers’ rotation. His blend of premium velocity, improved command and a versatile pitch mix makes him a key piece in the club’s quest for postseason contention.