FORMER MET ENJOYING GREEN-ER PASTURES  —  Shawn Green anticipated that it would happen.  Now it's a done deal.  —  The right fielder, who played with the Mets for the last year and a half and spent parts of 15 seasons in the majors, told The Post yesterday that he has retired.

PELFREY POPPIN'  —  FIFTH-STARTER HOPEFUL COMES OUT FIRING  —  LAKELAND, Fla. - When it comes to the Mets choosing a No. 5 starter, consider yesterday a bit of foreshadowing.  —  While an ailing Orlando Hernandez was continuing his painfully slow pace back in Port St. Lucie …

Zumaya pleased by progress  —  Tigers reliever ahead of schedule after October surgery  —  LAKELAND, Fla. — Joel Zumaya came to camp on Tuesday expecting another day in the weight room.  He ended up throwing a baseball for the first time in almost five months.

MLB might punish Mets over thin traveling squad … The Mets could be in hot water with the commissioner's office over the traveling squad they took to Lakeland for their spring-training opener Wednesday.  —  Just the day before, MLB's executive vice president for baseball operations …

DeRosa to undergo heart procedure today; expected back soon  —  MESA, Ariz. — Cubs second baseman Mark DeRosa is scheduled to undergo surgery this morning to correct the heart arrhythmia that sent him to a Mesa hospital over the weekend.  And barring a setback, the club expects he'll be ready …

Matsui prepared to yield to Yankees' needs  —  TAMPA, Fla. - Hideki Matsui wants to play leftfield for the Yankees.  However, they more likely are penciling him in as a designated hitter, at least most of the time.  —  Matsui said yesterday that although he would prefer to be in the outfield …

What a switch: fan Batista meets his idol Kenny G  —  PEORIA, Ariz. — His entire winter had been spent front and center on some kind of stage.  —  Miguel Batista hopped around the United States, Ecuador, Panama and his native Dominican Republic, opening baseball parks …

Milledge rips Mets again  —  LAKELAND, Fla. - From high-fiving fans, to showboating after meaningless home runs, to arriving late at the ballpark more than a few times, Lastings Milledge certainly stirred things up during his brief stay with the Mets.  —  And while he's with the Nationals now …

Corpas locked, loaded Rockie  —  Colorado and the closer have agreed on a historic deal that could be worth $22 million.  —  TUCSON — Manny Corpas' knack for perfect endings has created the beginning of a long-term relationship with the Rockies.  The Rockies agreed in principle Wednesday …

Notes From The Battleground: Roy White Better Than Jim Rice?  —  As Spring Training has yet to really heat up yet, Volume 4 of Notes from the Battleground will take a retrospective look at the Yankee-Red Sox rivalry, going back to the 1970s - the last time the rivalry was as intense as it's been of late.

La Russa, Yost have edge when pitchers bat eighth  —  Earlier this week, Milwaukee Brewers manager Ned Yost told reporters he might bat Jason Kendall ninth this season, behind the pitcher.  On Tuesday, St. Louis Cardinals manager Tony La Russa announced his pitchers would bat eighth all season.

Fainaru-Wada: Damning analysis on Clemens … An 18-page memorandum compiled by congressional staff members provides a damning analysis of statements given under oath by Roger Clemens — underscoring a perjury case that could be looming for the seven-time Cy Young winner.

Notes: Fukudome makes plans to steal  —  Lee in Obama's corner; Ramirez, Soriano to sit Cactus opener  —  MESA, Ariz. — Kosuke Fukudome's career single-season high in stolen bases is 13, which he swiped in 2005 for the Chunichi Dragons.  The No. 3 hitter in Japan does not run much …

Softballs for Pettitte; Beanballs for Clemens  —  When are journalists (and baseball) going to ask Andy tougher questions?  —  Andy Pettitte's February 18 press conference was an afternoon of softball questions from a friendly home-crowd press.  Sample: “If you had to do it all over again …