The Red Sox and Marlins have come to a tentative agreement on a trade that would send Josh Beckett and Mike Lowell to Boston for shortstop Hanley Ramirez, right-handed prospect Anibal Sanchez and a minor-league pitcher. The deal is contingent on the finalization of paperwork and all players passing physicals, sources outside the Red Sox organization have told ESPN's Peter Gammons. An official announcement is not expected for a day or two, which leaves open the possibility that it could still fall apart, Gammons said on SportsCenter. Only some last-minute haggling over dollars appeared to be holding up the deal,...