Manaea (arm) threw a 20-pitch bullpen session Sunday, John Hickey of the San Jose Mercury News reports.

EDGE Analysis

The Athletics are planning to have Manaea perform one more bullpen session before determining if he's ready to begin a rehab assignment. He won't be eligible to come off the DL until June 29, but he's endured no setbacks that would suggest he'll miss much more than the minimum 15 days.