Dodgers manager Don Mattingly said Friday that Jerry Hairston Jr. (knee, groin) had "a little bit of a setback." Hairston was placed on the disabled list earlier this month with a left groin strain, but he's now dealing with knee issues. The setback means that he won't be activated from the DL next week when first eligible. The Dodgers are expected to send him on a brief rehab assignment before he's cleared to return.