Tigers send Oliver to Pirates for Ramon Cabrera
The 25-year-old Oliver was 5-9 with a 4.88 ERA in 19 starts and nine relief appearances this year at Triple-A Toledo.
Cabrera, 23, hit .276 with 22 doubles, three homers and 50 RBIs at Double-A Altoona.
The swap was announced Wednesday.
Copyright 2012 by The Associated Press
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