Neil Walker requested $11.8 million and was offered $9.4 million by the Mets when arbitration figures were exchanged on Friday.
Mets acquired 2B Neil Walker from the Pirates for LHP Jon Niese.
Joel Sherman of the New York Post reports that the Mets and Pirates have agreed to a trade involving Neil Walker and Jon Niese, pending a medical review.
Rob Biertempfel of the Pittsburgh Tribune-Review reports that the Angels have "very serious" interest in Pirates second baseman Neil Walker.
CBS Sports' Jon Heyman reports that the Nationals are also interested in a trade for Pirates second baseman Neil Walker.
Bill Brink of the Pittsburgh Post-Gazette reports that the Mets are considering a trade for Pirates second baseman Neil Walker.
Mike Puma of the New York Post reports that the Mets "have some interest" in Neil Walker.
Nick Cafardo of the Boston Globe reports that "all of baseball" knows Neil Walker is available in a trade.
The Baltimore Sun's Eduardo A. Encina is reporting that the Orioles have been in trade talks regarding Pirates second baseman Neil Walker.
Neil Walker is not in the Pirates starting lineup on Saturday.
Neil Walker went 4-for-5 with a homer and a career-high six RBI as the Pirates beat the Rockies 13-7 to clinch a postseason berth for the third straight year.
Neil Walker went 2-for-4 and hit his 14th homer Friday off the Dodgers' Zack Greinke.
Neil Walker went 2-for-4 with an RBI single in Monday's loss to the Reds.
Neil Walker is not in the Pirates' lineup Friday.