The Cubs claimed Adrian Cardenas off waivers from the Oakland As on Monday and designated Blake DeWitt for assignment, switching in a slightly younger, cheaper infield option.
Last year Cardenas, 24, hit .314 with five homers, 70 runs scored, 51 RBI and a .374 on-base percentage in 127 games with Triple-A Sacramento.
Cardenas was originally selected by the Philadelphia Phillies with the 37th overall pick in the 2006 draft. He has primarily played second base in his minor-league career.
DeWitt was acquired from the Los Angeles Dodgers at the 2010 trade deadline as part of the Ted Lilly deal. He never grabbed the second-base job, but was a decent player off the bench, hitting .265 in 121 games with the Cubs.
The 26-year-old DeWitt who was arbitration-eligible for the first time this winter had previously agreed to a 1.1 million deal with the Cubs and will now go through waivers.