Nationals Sign Japanese Left-Hander Shinnosuke Ogasawara to Two-Year Deal

WASHINGTON, D.C. — The Washington Nationals have signed Japanese left-hander Shinnosuke Ogasawara to a two-year contract, the team announced Wednesday. Financial terms of the deal were not disclosed.

Ogasawara, 27, joins the Nationals after spending nine seasons with the Chunichi Dragons in Japan’s Nippon Professional Baseball (NPB). In 951 1/3 innings, he posted a 3.62 ERA, striking out 18.9% of batters faced while walking 7.7%. His most recent season saw a significant drop in strikeouts to 13.6%, though he maintained a strong 3.12 ERA.

“We’re excited to bring Shinnosuke into our organization,” said Nationals General Manager Mike Rizzo. “His experience and ability to compete at a high level in Japan make him a valuable addition to our pitching staff.”

Ogasawara’s signing marks the Nationals’ latest move to bolster their rotation, which already includes MacKenzie Gore, Trevor Williams, and recent acquisition Michael Soroka. To make room for Ogasawara, the Nationals designated fellow left-hander Jose A. Ferrer for assignment.

Despite his success in Japan, questions remain about how Ogasawara’s skills will translate to Major League Baseball. His strikeout rate in NPB was below the MLB average of 22-23%, and his size—listed at 5’11″ and 183 pounds—has raised concerns about his durability. However, Ogasawara has been working on refining his pitches at Driveline Baseball, a renowned training facility, which could help him adapt to the MLB environment.

“I’m looking forward to the challenge of pitching in the majors,” Ogasawara said through a translator. “I’ve been preparing for this opportunity, and I’m ready to contribute to the Nationals’ success.”

The Cubs were reportedly among the teams interested in Ogasawara, but the Nationals ultimately secured his services. With his posting window expiring Wednesday, the deal was finalized just in time.

Ogasawara’s arrival adds another layer of intrigue to the Nationals’ 2025 season as they aim to rebuild and compete in the National League East.