Mets Rumor Roundup for Thursday, Dec. 13: On the catching search, the outfield market, and moreThe Mets have made two big moves, but there's more to come12/13/2018, 4:25 PMOct 26, 2018; Los Angeles, CA, USA; Los Angeles Dodgers catcher Yasmani Grandal (9) throws to first for an out against Boston Red Sox second baseman Brock Holt (not pictured) in the second inning in game three of the 2018 World Series at Dodger Stadium. Mandatory Credit: Richard Mackson-USA TODAY Sports / Richard Mackson