Cuban infielder Hector Olivera just held a two-day showcase at the Giants' facility in the Dominican Republic.
Tommy Milone began the 2014 season in the A's rotation and won six straight decisions between May and June.
The A’s anticipate going to arbitration hearings to determine the 2015 salaries for starting pitcher Jarrod Parker and reliever Tyler Clippard.
A's closer Sean Doolittle has a slight rotator cuff tear in his throwing shoulder and will miss the start of the regular season, the team announced Friday.
One of the A’s top minor leaguers received quite a dose of praise Friday.