Yanks add catcher Stewart, option Cervelli  —  TAMPA, Fla. — The Yankees completed a deal on Wednesday to address their organizational catching depth, acquiring veteran Chris Stewart from the Giants in exchange for right-hander George Kontos.  —  Because Stewart is out of Minor League options …

Lohse, Cardinals spoil Marlins' debut in new ballpark  —  The sellout crowd in the Miami Marlins' new ballpark cheered the introduction of their starters, who were accompanied by women dressed as Latin showgirls.  There was another roar for Muhammad Ali, who delivered the first pitch.

Sources: Jon Niese, Mets reach deal  —  PORT ST. LUCIE, Fla. — New York Mets left-hander Jon Niese has agreed to a five-year, $25 million deal with two team options that can raise the value to $52 million, according to two sources.  —  The completion of the contract is pending a physical.

Donaldson's 2 HRs Power A's Past Giants 8-1  —  SAN FRANCISCO (AP) — Josh Donaldson started to show signs in the final exhibition that he might be a reliable replacement to Scott Sizemore, after all.  —  Donaldson hit two homers and drove in five runs off Yusmeiro Petit …

Valentine names Aceves the closer  —  DETROIT — A few bits of news from Bobby Valentine's press conference just now:  —  • Alfredo Aceves is the closer.  —  “On the days when Alfredo's not available, if Mark Melancon is available, he'll be doing it.  I think the guys leading up to that will be very credible,” Valentine said.

Yankees Sign Ramon Ortiz  —  The Yankees signed right-hander Ramon Ortiz, Jon Heyman of CBSSports.com tweets.  It's a minor league deal, Marc Carig of the Star-Ledger tweets.  The Giants recently released the 39-year-old Praver/Shapiro client.  —  Ortiz appeared in 22 games for the Cubs last year …

Police pull their guns on Torii Hunter ... while he's in his own home  —  Torii Hunter's Twitter feed got interesting in the past hour: … It was reported here.  I assume if Hunter was less than accurate in his tweets, there would be something contradicting it in the story.

Grady Sizemore placed on 60-day DL  —  CLEVELAND — The Indians have placed oft-injured center fielder Grady Sizemore on the 60-day disabled list and finalized their roster for opening day.  —  Sizemore, who underwent back surgery last month, will not be eligible to come off the DL until June 3.

2012 Organizational Rankings: #9 - Toronto  —  Read the methodology behind the ratings here.  Remember that the grading scale is 20-80, with 50 representing league average.  —  #20 - New York Mets  —  #19 - Los Angeles Dodgers  —  #18 - Colorado  —  #17 — Miami  —  #16 — Diamondbacks

Brian Matusz Chosen as Orioles' 4th Starter  —  NORFOLK, Va. (AP) — Brian Matusz pitched his way into Baltimore's rotation this spring and made his final pitch with a strong outing in an exhibition against the Orioles' top farm team in Norfolk on Wednesday afternoon.