Barnes, 27, went 3-2 with a 3.69 ERA over 25 games (one start) with Triple-A Columbus in Cleveland's Minor League organization in 2014. The left-hander was designated for assignment by the Tribe on Nov. 23 and was traded to Baltimore three days later. In 2014, Barnes held opponents to a .193 (22-for-114) average, including .191 (9-for-47) with just two extra-base hits by left-handed batters.
Barnes made his Major League debut with the Indians in 2012 and was 0-1 with a 5.20 ERA in 22 relief appearances with Cleveland from 2012-13. Barnes was originally selected by San Francisco in the 2008 First-Year Player Draft and was traded to Cleveland in July 2009.
Brittany Ghiroli is a reporter for MLB.com. Read her blog, Britt's Bird Watch, and follow her on Facebook and Twitter @britt_ghiroli. This story was not subject to the approval of Major League Baseball or its clubs.