The Dodgers have dealt infielder Chin-lung Hu to the Mets in exchange for 25-year-old minor-league lefthander Michael Antonini. Antonini was primarily a starting pitcher in 2010, posting a 4.32 ERA with 7.3 strikeouts per nine innings in 23 Double-A starts and a 5.11 ERA with 6.1 strikeouts per nine innings in six Triple-A starts. Hu, who has spent eight years in the Dodgers organization, has the most times at-bat of any Taiwan-born player in major-league history.

The Mariners have traded former starting catcher Rob Johnson to the Padres. Seattle will receive a player to be named later and cash considerations. Johnson had been designated for assignment by the Mariners on Dec. 13.

The Brewers have acquired right-hander Zack Greinke in a trade with the Royals, the team announced Sunday. Kansas City landed shortstop Alcides Escobar, outfielder Lorenzo Cain and right-handed pitching prospects Jake Odorizzi and Jeremy Jeffress from Milwaukee in exchange for Greinke, shortstop Yuniesky Betancourt and cash considerations. "Zack Greinke is one of the top young pitchers in the game today," Brewers general manager Doug Melvin said in a statement. "We are very excited to add him to our new rotation. "Zack brings great physical skills and athleticism to the team and is an outstanding competitor. This trade is a credit to our scouting and player development staff as their hard work and judgment provided us the talented prospects that Kansas City will be receiving. I also appreciate the support of ownership in making this deal."

The Padres have acquired Jason Bartlett and a player to be named later from the Rays in exchange for Adam Russell, Cesar Ramos, Brandon Gomes and Cole Figueroa. "We're really happy to get Jason. I watched him play when I was in Boston. He's hard to play against," general manager Jed Hoyer said. "He's a pest. He battles every at-bat. He was a guy you didn't want to see in the batter's box." Bartlett, who is arbitration-eligible and due a raise from the $4 million he made last season, hit .254 with the Rays with four home runs and 47 RBIs.

The Cardinals have traded infielder Brendan Ryan to the Mariners for right-hander Maikel Cleto, according to an ESPN.com report on Sunday. Ryan hit .223 and had 11 steals in just short of 500 plate appearances for St. Louis last season.

The Orioles have acquired J.J. Hardy and Brendan Harris from the Twins in exchange for minor league right-handers Jim Hoey and Brett Jacobson. ?We?re looking for a little more offence to our regular shortstop position, and we?re confident he can provide that,? Orioles president of baseball operations Andy MacPhail said. ?We also talked to other shortstop targets.?

The Orioles have acquired slugging third baseman Mark Reynolds from the Diamondbacks for right-handed relievers David Hernandez and Kam Mickolio. "We needed to improve our offense," Orioles president of baseball operations Andy MacPhail said. "We think Mark Reynolds very much represents that." Reynolds has averaged nearly 35 homers for the last three years. He's also struck out over 200 times in each of those seasons.

The Brewers have traded pitcher Carlos Villanueva to the Blue Jays for a player to be named later. The two sides have until April 1 to complete the return package of the deal. Brewers general manager Doug Melvin conceded the player coming in return "is not going to have an impact on the major-league club."

The White Sox traded reliever Scott Linebrink to the Braves for right-handed pitcher Kyle Cofield on Friday. Cofield, 23, spent most of 2010 with Double-A Mississippi, going 1-3 with a 4.39 ERA. Linebrink was 3-2 with a 4.40 ERA last season, and his three-year mark with the White Sox was 8-11 with a 4.28 ERA.

The Rockies have acquired infielder Jose Lopez from the Mariners in exchange for minor-league pitcher Chaz Roe. Lopez hit .239 with 10 home runs last season, but slugged 25 homers in 2009.