Dave Roberts, whose stolen base for Boston in the 2004 playoffs sparked the Red Sox to an elusive World Series championship, is being treated for Hodgkin's lymphoma.

Roberts was diagnosed in mid-March and he says the cancer was detected early. He says the prognosis is "good." He has undergone two rounds of chemotherapy so far.

The 37-year-old Roberts is working for the San Diego Padres as a special assistant. He was scheduled to talk about his health later Monday.

Roberts played 10 seasons in the majors for Cleveland, the Los Angeles Dodgers, Boston, San Diego and San Francisco. The speedy outfielder retired after the 2008 season with the Giants, then worked in television last year for the Red Sox.