2025 Topps Now ROKI SASAKI Rookie Card #OS-13 Dodgers Sign Fastball Japan Pitcher- Graded GEM-MINT 10. Roki Sasaki, the Japanese pitching sensation, joins the Dodgers team in an international free agency signing with Major League Baseball. The Dodgers are well equipped to help Sasaki become one of the best starting pitchers in MLB, as they have a knack for bringing out the best in Major League-caliber arms. The 23-year old enters the League with major hype and will make an immediate impact with his new Club.