Looper, 31, pitched for the New York Mets last season and went 4-7 with a 3.94 ERA in 60 games with 28 saves. The 6-3, 220-pound native of Oklahoma recorded a career-high 29 saves with the Mets in 2004 and won a World Championship with the Marlins in 2003.
"We are glad to have Braden back in our system, and he's glad to be back," stated Senior Vice President/General Manager Walt Jocketty. "He will be a quality set-up pitcher in our bullpen and be able to close for us on days when Jason (Isringhausen) is not available."
Looper has appeared in 70+ games six out of his seven years in the Majors and holds a career record of 25-29, 3.47 ERA with 103 saves. He is 4-6 with 30 saves and a 3.10 ERA in his career vs. NL Central teams and has handled his former and future team rather well, posting a 1-0 mark with three saves and a 0.00 ERA in 16 career games (17.0 IP) versus the Cardinals.
The reliever underwent arthroscopic surgery October 3 of this year to clean out the AC joint in his right shoulder and has cleared a physical with the Cardinals medical staff.