According to ESPN’s Jayson Stark:
"Mets are closing in on a big deal with the Pirates, for Roberto Hernandez and Oliver Perez. Still haggling about the rest of that deal."
The Mets have been interested in these guys for a while; first I heard of it was back when Jeff Keppinger was dealt.
SI.com now reports that Xavier Nady goes to Pittsburgh in the deal. I’m told that the Mets also have coveted Edwin Jackson as a project for Rick Peterson, but that interest may be on hold with this acquisition.