The Baltimore Orioles on Saturday agreed to trade right-handed pitcher Sidney Ponson to San Diego for first baseman Phil Nevin. Nevin has a limited no-trade clause and had yet to approve the deal, ESPN The Magazine's Buster Olney reports, and according to Nevin's clause, he can veto a trade to the Orioles. Olney adds that it could be a few days before Nevin decides. With Ponson acquired by the Padres, the Orioles' deal to acquire Florida Marlins right-hander A.J. Burnett has been shelved. A three-way deal with the Orioles and Texas Rangers, which would have sent Burnett to Baltimore, was "killed" by the Orioles this weekend, a baseball man familiar with the deal told ESPN.com's Jayson Stark. So the Marlins are believed to have broken off talks with Baltimore, at least for now, and are back to focusing on offers by the Chicago White Sox, Boston Red Sox and Toronto Blue Jays. Florida, Baltimore and Texas had structured a complicated three-way trade that, theoretically, would have allowed the Orioles to assume most of the $21 million left on Mike Lowell's contract by jettisoning Ponson. Ponson has about $13 million remaining on his contract, which runs through 2006. But Baltimore and Florida would have assumed a large chunk of that, then traded Ponson to the Rangers, who would have picked up the rest. Texas also would have saved another $2 million by dealing Richard Hidalgo to Florida -- meaning the Rangers would have been getting Ponson for only about $3 million.