Abbott was optioned to Triple-A Rochester after Sunday's game against Atlanta, Mark Zuckerman of MASNSports.com reports.
He did not pitch in the game despite being promoted just ahead of the contest. Abbott has given up one run while striking out four in three innings in the majors and has a 5.34 ERA, 1.55 WHIP and 37 strikeouts in 30.1 innings at Triple-A.