Trade Deadline 2007 FROM SI.COM HEYMAN: Winners, losers, grades from deadline SMITH: Top eight prospects to change hands HEYMAN: Red Sox, Rangers agree on Gagne trade HEYMAN: Giants swap Morris for Pirates outfielder SHEEHAN: Analyzing Teixeira, Castillo trades HEYMAN: Padres acquire White Sox OF Mackowiak HEYMAN: Yanks, Dodgers trade Proctor for Betemit HEYMAN: Rangers get nice haul for Teixeira HEYMAN: Braves trade for Teixeira, pursue Dotel HEYMAN: Mets get Gold Glover Castillo from Twins REACT: Are the Red Sox World Series favorites? Photos: Best midseason acquisitions ever QUINTONG: How will Teixeira impact your league? FROM THE WIRES Nationals keep Cordero, stand pat at deadline Mariners ship troubled Mateo to Philadelphia Braves get Dotel from Royals; Teixeira deal official Busy Padres make three deals before deadline Red Sox send Pineiro to Cards for minor leaguer

By Jon Heyman, SI.com

The Mets and Diamondbacks are bidding for Nationals closer Chad Cordero, whose name keeps popping up in trade talks as the 4 p.m. EDT nonwaiver deadline approaches.

The Mets offered fine pitching prospect Phil Humber for Cordero but have been firm to this point that they will not surrender any of their top four prospects: outfielders Carlos Gomez, Fernando Martinez and Lastings Milledge, and pitcher Mike Pelfrey.

Cordero was originally drafted by Mets GM Omar Minaya. The Mets tried to get Eric Gagne earlier but appear to be targeting Cordero now.

The Diamondbacks have several excellent prospects they could offer. One name that has been mentioned in deals lately has been their outfield prospect Carlos Quentin.

Teams have been complaining that the Nationals are asking too much for Cordero, but with impact pitchers mostly unavailable, a team may have to overpay to get him.