The move, which helps the Dodgers counter the Diamondbacks' acquisition Friday of right-hander Dan Haren, is a significant blow to the Mariners, who were among the teams bidding heavily for Kuroda.
The Mariners, trying to add two starting pitchers, have spoken extensively with the Orioles about a trade for left-hander Erik Bedard and will now intensify their pursuits of free-agent righties Carlos Silva and Kyle Lohse, sources said.