Two relievers promoted to major league camp

SURPRISE, Ariz. -- The Texas Rangers announced Tuesday the additions of right-handed pitchers Ben Rowen and Lisalverto Bonilla to their training camp roster.

Rowen and Bonilla have seen limited spring action as minor-league extras, but both have made the most of their opportunities and own impressive résumés.

"Both guys were discussed before camp, as far as coming in," president of baseball operations/general manager Jon Daniels said. "We had quite a few numbers but they've come over and thrown a few innings and I think everyone wanted to see a little bit more of them -- get them in this environment, get them with Mike (Maddux). Both guys have impressed."

Bonilla was acquired in December from Philadelphia as part of the Michael Young trade. His changeup is considered his best pitch, followed by a slider.

He's thrown one scoreless inning this spring with a walk and a strikeout.

The 22-year old Samana, Dominican Republic native was 3-2 with a 1.55 ERA and four saves in 31 appearances in Single-A and Double-A in 2012, his first season as a full-time reliever.

Rowen's deep, submarine delivery is enough to garner attention, but the results of his funky throwing motion have been eye-popping as well.

"We have a bunch of guys with different arm slots, he's even more extreme," Daniels said. "Almost more like Chad Bradford, more like that angle with his hand barely above the ground when it comes to his arm swing. He's a unique guy."

Rowen throws plenty of strikes but isn't packing the velocity with a fastball that peaks in the low 80s, but he has excellent command. Last season he finished 5-0 with a 1.57 ERA and 19 saves for Myrtle Beach, earning him Closer of the Year honors in the Carolina League and the minors' Best Relief Pitcher from MLB.com.

Rowen has allowed one hit in two scoreless innings this spring.

The Rangers also announced Tuesday that RHP Jake Brigham, RHP Neil Ramirez, RHP Justin Miller and OF Joey Butler have been reassigned to the minor league camp.