Hairston, out with a strained left hamstring, was activated to replace the injured Justin Sellers and started Friday night at third base. Hairston played Wednesday and Thursday in Minor League rehab games for Triple-A Albuquerque.
Kemp and Rivera, also out with left hamstring injuries, will start rehab assignments Sunday with Albuquerque. Kemp will play two games, then is expected to be activated Tuesday, the first day he is eligible to return. Rivera will also play those two games for Albuquerque, but not be activated. Because he's been out five days longer than Kemp, manager Don Mattingly said Rivera likely will play in some Class A games for Rancho Cucamonga until his hitting timing is back.
"It's to get him more baseball, not because of his leg," said Mattingly.
Third baseman Juan Uribe, on the DL with an arthritic left wrist, resumed light hitting Friday.
Hairston said he feels 100 percent.
"I went down to test it and it feels good," said Hairston. "I'm ready to play. All systems are go."