The 22-year-old Abreu, who has been rotated defensively at third base, shortstop and second base, was batting .347 and his 35 runs scored in 39 games was second in the Pacific Coast League. He hit his second home run Monday night.
The switch-hitting Abreu batted .340 in Spring Training as a non-roster invitee and emerged as a potential candidate to eventually replace 39-year-old second baseman Jeff Kent. Originally signed as a shortstop, he had been exclusively a second baseman until this year.
Kuo made only two Major League appearances and had a 15.43 ERA after beginning the season on the disabled list with a shoulder strain. He was called up to provide a 12th pitcher, which the Dodgers feel is not currently necessary with two days off in the next week.
Ken Gurnick is a reporter for MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.