As of 12:15pm it's 69 degrees and mostly cloudy in Port St. Lucie where the Houston Astros visit to take on the New York Mets.   Johan Santana makes his spring debut for the Mets.   Today's lineups courtesy The Star-Ledger's Brian Costa:Mets lineup1. Gary Matthews Jr., cf2. Luis Castillo, 2b3. David Wright, 3b4. Mike Jacobs, dh5. Jason Bay, lf6. Ike Davis, 1b7. Jeff Francoeur, rf8. Alex Cora, ss9. Henry Blanco, cJohan Santana, spIn the bullpen: Sean Green, Elmer Dessens, Travis Blackley, Eddie Kunz, Jack Egbert, Clint EvertsAstros lineup1. Michael Bourn, cf2. Kaz Matsui, 2b3. Geoff Blum, 1b4. Jason Michaels, lf5. Pedro Feliz, 3b6. Chris Shelton, dh7. Cory Sullivan, rf8. Tommy Manzella, ss9. Humberto Quintero, cBrett Myers, spIn the bullpen: Matt Lindstrom, Alberto Arias, Chris Sampson, Sammy Gervacio, Jose Valdez, Wesley Wright, Wilton LopezIf you don't have access to SNY which is carrying today's game you can follow it via MLB Gameday and for those interested also at 1:00pm on the MLB Network the Washington Nationals' phenom Stephen Strasburg is scheduled to make his debut.