Kotchman was acquired by the Mariners in exchange for utility man Bill Hall and a player to be named. Celestino, 20, went 5-3 with a 4.73 ERA in 13 games (12 starts) for the rookie-level Arizona Mariners of the Arizona League in 2009. He played for the Mariners' entry in the Dominican Summer League in 2007 and '08.
Celestino, a native of the Dominican Republic, originally signed with the Mariners as an international free agent on Dec. 16, 2006.
Doug Miller is a national writer for MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.