Kaprielian (shoulder) will begin the season at Triple-A Las Vegas but could rejoin the Athletics by the end of April, Martin Gallegos of MLB.com reports.

Kaprielian has had no apparent setbacks in his throwing sessions, but he'll get eased into action against Triple-A competition before getting the call back to the majors. Once he's returned to health, the promising right-hander is likely to slot into the No. 2 spot in the rotation now that Sean Manaea has been traded to the Padres.