San Francisco Giants relief pitcher Jeremy Affeldt, left, and outfielder Hunter Pence, right, sit in the dugout before the start of their baseball game against the San Diego Padres Wednesday, May 6, 2015, in San Francisco.
San Francisco Giants relief pitcher Jeremy Affeldt, left, and outfielder Hunter Pence, right, sit in the dugout before the start of their baseball game against the San Diego Padres Wednesday, May 6, 2015, in San Francisco. Eric Risberg AP
San Francisco Giants relief pitcher Jeremy Affeldt, left, and outfielder Hunter Pence, right, sit in the dugout before the start of their baseball game against the San Diego Padres Wednesday, May 6, 2015, in San Francisco. Eric Risberg AP

Giants’ Hunter Pence to start rehab Friday with River Cats

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