Mets trading Brandon Nimmo to Rangers for Marcus Semien  SNYSources: Rangers, Mets to swap Semien, Nimmo  ESPNFantasy Baseball Trade Reaction: Arrow up for Marcus Semien, down for Brandon Nimmo in trade of boring vets  CBS SportsMets, Rangers finalizing trade: Nimmo to Texas, Semien to NY (source)  MLB.comMets, Rangers agree to swap All-Stars Brandon Nimmo and Marcus Semien in blockbuster deal: report  Fox News