Newport wrote that Craig Mish of Sirius XM posted on his Twitter account the Miami Marlins have placed both Castro and Ziegler on the trading block.
Source : Marlins are telling clubs both Starlin Castro & Brad Ziegler are available. Castro 3rd in NL in hits, hitting over .400 in July. Owed 11.8 mil next season. Ziegler has dominated in June & July.
Other Miami players have been discussed as possible trade pieces, including Drew Steckenrider, who the Boston Red Sox are said to be interested in, per Chris Cotillo of masslive.