From ESPN.....

Unable to reach agreement on a trade for Chad Cordero, the Mets and Nationals were said to be also talking to the Diamondbacks about a possible three-team deal. According to an official of one team that had spoken with those clubs, the Mets and Nationals ran into a hang-up over the Mets' refusal to include a second prospect in the trade. It's believed that the Mets were willing to trade highly regarded pitching prospect Phil Humber for Cordero, but when they were unable to agree on a second piece, the Nationals sought to expand the deal. However, the official said the Mets were adamant about making a one-for-one swap, so the chances of an expanded deal were described as unlikely.

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The Gagne sweepstakes was down to the Red Sox and Brewers by Tuesday afternoon. The Yankees and Mets signaled that by turning their attention to other deals, according to executives from multiple teams. The Mets said no on any of their young outfieldes -- Carlos Gomez, Fernando Martinez and Lastings Milledge.