Former Pirates and Yankes right-hander Jeff Karstens took to Twitter yesterday to announce that he has officially retired from the baseball.

Karstens, still just 32 years of age, hasn’t pitched in the Majors since 2012, as a series of shoulder injuries that culminated in 2013 surgery to repair the labrum and rotator cuff in his right shoulder slowed and ultimately ended his career.

Originally a 19th-round selection of the Yankees in 2003 out of Texas Tech, Karstens was traded to the Pirates along with Daniel McCutchen, Jose Tabata and Ross Ohlendorf in the 2008 trade that sent Xavier Nady and Damaso Marte to New York. In 2011-12, the San Diego-born Karstens made 41 starts and eight relief appearances for the Bucs, pitching to a solid 3.59 ERA with 5.8 K/9 and 1.7 BB/9 in 253 innings of work.

Though injuries prevented Karstens from stepping onto a Major League mound following that injury-shortened 2012 season, he was still able to pocket roughly $7.8MM over the life of a career that spanned parts of seven seasons. We at MLB Trade Rumors extend our best wishes to Karstens, as well his family and friends, as he enters his post-playing days.