Trivino (illness) will begin a rehab assignment at Single-A Stockton on Sunday, Martin Gallegos of MLB.com reports.
The right-hander has been on the COVID-19 injured list since April 18, but he'll now return to game action with the Athletics' minor-league affiliate. Manager Mark Kotsay said Saturday that Trivino will be evaluated on a game-by-game basis to determine when he'll be cleared to rejoin the major-league club.