Matusz, who turns 29 next week, posted a 2.94 ERA and a career-high 10.29 strikeouts per nine innings in 58 relief appearances last season. He has a 4.76 ERA and 459 strikeouts in 272 career games (68 starts), all with Baltimore.
Cash Kruth is a reporter for MLB.com. Follow him on Twitter at @cashkruth. This story was not subject to the approval of Major League Baseball or its clubs.