Damon helps Mussina win third straight  —  Righty holds Mariners to one run behind outfielder's three hits  —  NEW YORK — Johnny Damon and Mike Mussina entered this season with something to prove.  So far, both Yankees veterans are satisfied with their progress.

Moss undergoes emergency appendectomy  —  The Red Sox were certainly the envy of baseball with two players many teams would love to have right now: Bartolo Colon, who is just about recovered from an oblique injury and is scheduled to pitch in a spring game tomorrow in Sarasota, Fla. …

Game 33: Mariners at Yankees  —  YANKEES  —  Carlos Silva vs. the New York hitters.  —  Darrell Rasner vs. the Seattle hitters.  —  Notes: Ian Kennedy has been demoted to Scranton to make room for Rasner on the 25-man roster.  Brian Bruney was moved to the 60-day DL to clear space on the 40-man roster.

VERSATILE MURPHY TURNING HEADS  —  Mets prospect Dan Murphy, Double-A Binghamton's starting third baseman, had a great April, hitting .363 with one home run and 18 RBI in 26 games.  —  But no matter how much Murphy, Baseball America's No. 15 prospect in the Mets system, hits in the minors …

Diamondbacks' Webb improves to 7-0  —  PHOENIX (AP)—The Arizona Diamondbacks figure they're going to win every time Brandon Webb pitches.  —  They didn't expect Augie Ojeda to help make him the majors' first seven-game winner.  —  Ojeda drove in a career-high six runs to lead …

SERBY'S SUNDAY Q&A WITH...  BILLY WAGNER  —  May 4, 2008 — The Post's Steve Serby sat down at Shea with the Mets' candid closer:  —  Q: What would you say the odds are that you will not pitch beyond the end of next season?  —  A: I would say somewhere around 99 percent.  —  Q: Why?

Tabata returns from suspension  —  Have this going in the paper tomorrow.  I'm sure some of you have heard the news already.  —  Double-A outfielder Jose Tabata, considered one of the organization's top prospects, was suspended for three games last week and considered asking the Yankees for his release before returning to the team.

Schneider to return in L.A.  —  PHOENIX - Brian Schneider expects to start Monday when the Mets open a three-game series against Joe Torre's Dodgers in L.A. That would mark Schneider's first game since a six-day hospital stay for a staph infection in his left thumb.

Four errors cost A's, Blanton in opener  —  Righty goes seven solid innings, but takes the tough-luck loss  —  OAKLAND — Every year, it seems, the A's have one starting pitcher who can't seem to catch a break.  —  He's the guy who shatters bats, only to see the jam-shots land safely in the outfield.