The Marlins tried to acquired right-hander Jim Johnson from the Athletics last week, according to Ken Rosenthal of Fox Sports. The offer was Johnson and cash for the 39th overall pick in this week's draft, plus another player.
Rosenthal says Oakland was willing to make the trade, but Miami instead used that 39th overall pick to acquire righty Bryan Morris from the Pirates. Only draft picks in the competitive balance round can be traded. The amateur draft begins Thursday.
Johnson, 30, went from the Orioles to the Athletics in a salary dump trade over the winter. He has a 6.55 ERA in 22 innings for Oakland and has since lost the closer's job to Sean Doolittle. Johnson led MLB in saves in both 2012 and 2013. He will be a free agent this coming winter.
The Marlins come into Wednesday's game with a 30-28 record, good for second place in the NL East. They can climb to within a half-game of the Braves with a win on Wednesday night.
The A's, meanwhile, are 5.5 games up in the AL West. The trade would have saved them some cash and removed an unproductive player from the roster.