Orioles to add Suk-min Yoon

The Baltimore Orioles have agreed to a contract with Korean right-hander Suk-min Yoon, a baseball source confirmed to ESPN's Jim Bowden.

Yoon's deal is for three years and $5.725 million, the source said. His contract also contains performance bonuses based on games started.

Yoon had tweeted a picture of himself in an Orioles cap earlier this week, prompting speculation that he would join Baltimore.

The 27-year-old Yoon was considered the second-best starter in the Korean Baseball Organization last season (behind Hyun-Jin Ryu) and had a shoulder injury that slowed his season.

He had a 4.19 ERA in 11 starts and a 3.60 ERA in 19 appearances as the closer for the Kia Tigers. Before that, Yoon had a 2.45 ERA in 172 1/3 innings as a starter and a 3.12 ERA in 153 innings in 2012, posting solid strikeout-to-walk ratios both seasons.

Various reports have him with a fastball in the low 90s and a solid changeup. Yoon pitched in the 2008 Olympics and in the 2009 and 2013 World Baseball Classics.

CBSSports.com had earlier reported Yoon's agreement with the Orioles.

ESPNDallas.com's Richard Durrett contributed to this report.