BALTIMORE -- The Rangers added two relievers for future use on Friday when they signed free-agent pitcher Manuel Corpas and claimed Ramon Aguero from the Pirates.
Corpas had Tommy John elbow reconstruction surgery in September and will not pitch this year. But he was once an effective reliever for the Rockies, with had 19 saves and a 2.08 ERA over 78 games when they went to the World Series in 2007.
He could be an option for the Rangers in their bullpen in 2012.
"It's a big arm and a guy who has had success in a Major League bullpen and success in the back end of the bullpen," Rangers assistant general manager Thad Levine said. "It's a low-risk potential way to add to our stable of arms as we look to build on a championship bullpen in 2012."
Corpas, 28, was 3-5 with a 4.62 ERA and 10 saves in 56 games for the Rockies last season. Over his career, he has a 3.93 ERA and 34 saves in 280 games while averaging 9.5 hits, 2.5 walks and 6.5 strikeouts per nine innings. The Rockies released him at the end of last season.
Aguero was claimed off the Pirates' 40-man roster after he was designated for assignment at the end of Spring Training. He had some back troubles during spring camp and pitched in two games. He also had tendinitis in his right elbow last season.
"When our scouts have seen him, he has been 92-96 [miles per hour] with a good slider," Levine said. "He has had some health issues, and that is why he was available. But he has a good arm, and our pro scouts recommended him."
Aguero, 26, spent each of the previous five seasons (2006-10) with the Pittsburgh organization, going 11-22 with a 4.14 ERA and seven saves in 103 career minor league games. He has never pitched above Double-A. The right-hander has recorded 235 career strikeouts against 101 walks in 267 Minor League innings, while opponents have batted .266 off him.