The Royals and Athletics have agreed to a four-player swap. Left-hander Ryan Buchter and first base/DH-type Brandon Moss will head to Oakland in the deal, while right-hander Jesse Hahn and minor-league righty Heath Fillmyer are ticketed for Kansas City. The Royals also included $3.25MM in cash as part of the deal. Jeffrey Flanagan of MLB.com was first with the news. Though Moss is certainly the biggest name of the four, Buchter is actually the prize for the Athletics in this deal. In fact, the inclusion of Moss in the deal is probably more related to financial implications. Indeed, Royals GM Dayton Moore told Rustin Dodd of the Kansas City Star that “The economic part of it is very real to us,” which has in turn led to some speculation throughout the industry that the Royals are attempting to clear salary in order to make re-signing Eric Hosmer more feasible. Moore responded to an inquiry from Flanagan on the subject, telling him that it would be “inappropriate” for him to comment on a free agent right now. However, he did add that he’s been “very clear” about what the team’s thoughts are on Hosmer. Turning away from speculation and rumors and focusing on the here-and-now of the deal, the A’s will fill a bullpen need by getting a much-needed lefty. Prior to this trade, the only southpaw reliever in their projected bullpen was Daniel Coulombe. Buchter will serve as a long-term piece for the budding A’s (perhaps into their next window of contention), as he’s under team control through the end of the 2021 season. The Royals, meanwhile, will add a new potential candidate to their rotation. Per Moore’s conversation with Dodd, Hahn will compete during spring training for a spot in Kansas City’s rotation.