The Toronto Blue Jays traded reliever Seunghwan Oh to the Colorado Rockies for minor league prospects, it was announced Thursday.
Oh has a 2.68 ERA in 47 innings this season, striking out 55 batters. The right-hander has been stellar this month, holding opponents to a .143 batting average.
It's unclear where Oh will fit into Colorado's bullpen. The Rockies have Wade Davis as their closer and Adam Ottavino as an eighth-inning specialist.
The Rockies revamped their bullpen last winter, spending more than $100 million for Davis, right-hander Bryan Shaw and lefty Jake McGee.
Oh previously spent two seasons with the St. Louis Cardinals after several professional seasons in Japan and his native South Korea.
Toronto signed him to a one-year deal with a club option for 2019 this past offseason.
In return, the Blue Jays received minor league infielder Chad Spanberger, outfielder Forrest Wall and a player to be named from the Rockies.
The Associated Press contributed to this report.