5:51pm: According to Nick Cafardo at the Boston Globe, the Red Sox were given permission from MLB to talk to Wagner, and Theo Epstein claims he didn't know Wagner would even be shipped over until the final hours of the proceedings. In reaction to previous reports that Wagner would not join the Sox, Epstein said:
"You guys (media) had nothing to do during those 48-hour windows, so there have been a lot of stories come out. Basically he had a full no-trade clause, so it was up to him whether he wanted to stay with the Mets or go to the Red Sox. Ultimately, in the end he woke up and said he wanted to join a team that was in the middle of a pennant race, had a chance to pitch into October, and a chance to get a ring."
4:39pm: The Boston Herald reports that the Mets will acquire Triple A outfielder Chris Carter in the deal. The second player, whose identity remains unknown, is apparently "not of significance."
12:53pm: Olney reports that the Red Sox won't send any top prospects to the Mets. Bart Hubbuch hears they're AA-level players. Olney says the Red Sox have agreed not to pick up Wagner's 2010 option, but they can still offer him arbitration (and collect compensation picks if he signs elsewhere).
The Red Sox will pay the rest of Wagner's salary, according to Heyman.
12:26pm: Heyman reports via Twitter that Wagner is "on the verge" of accepting a deal to the Red Sox. He has four minutes to decide.
12:23pm: Olney reports that the Red Sox are expected to complete a deal for Wagner.
12:22pm: Via Twitter, Lennon says it looks like the deal will go through. An announcement is coming shortly.
12:12pm: Newsday's David Lennon hears that, while no deal is complete, the Mets and Red Sox could agree on one "soon."
12:00pm: Tony Massarotti of the Boston Globe reports that Billy Wagner is now considering a deal to Boston. He is apparently drawn to the Red Sox because they're in the pennant race. Earlier today, we heard that Wagner blocked a deal because he didn't want to risk injuring himself down the stretch. ESPN.com reported today that Wagner's agent believes his client should only pitch once every three days.
With the deadline for a deal approaching, the Red Sox were talking to Wagner in an attempt to work out a deal, according to ESPN.com's Buster Olney. Jon Heyman of SI.com reports that the Mets are "trying to talk sense" into Wagner. Heyman hears that the Red Sox still hope a deal will go through.