傑森·貝
On July 31, 2008, LaRoche, along with pitcher Bryan Morris, was traded to the Pittsburgh Pirates in part of a three-team deal that sent Manny Ramirez to the Los Angeles Dodgers and Jason Bay to the Boston Red Sox. LaRoche joined his brother Adam in Pittsburgh. After hitting .144 while with the Pirates in 2008, LaRoche was given an "intensive offseason workout regimen" throughout the offseason.