NEW YORK (AP) -- The New York Mets have promoted right-handed reliever Manny Acosta from Triple-A Buffalo.
The Mets selected his contract and he was to be available for Friday night's game against Atlanta.
The 30-year-old Acosta was 1-0 with four saves and a 1.77 ERA in 20 games at Buffalo. Last year with the Mets, he was 3-2 with a 2.95 ERA in 41 games.
Left-handed reliever Mike O'Connor was optioned by the Mets to Triple-A after Thursday's game. The Mets also transferred righty Chris Young to the 60-Day disabled list.