Oliva had been on the injured list since mid-April after undergoing surgery to repair a fractured hamate bone in his left wrist. He began playing in rehab games May 30 and has slashed .241/.288/.315 across 60 plate appearances over 14 games. If he clears waivers, he'll presumably fill in as organizational depth at Triple-A Sacramento.

Oliva underwent surgery in mid-April to address a left hamate bone fracture and began his rehab assignment with the Rivers Cats on Saturday. The 30-year-old doubled in the third inning, hit a sacrifice fly in the fifth and singled in the seventh before stealing two bases and scoring. The outfielder will be eligible to return to the big-league roster in mid-June.