Teams "have gotten the sense" that Giancarlo Stanton could be traded by Dec. 10, the start of the winter meetings.
There has been a lot of speculation as to what the Miami Marlins will do with Stanton this offseason.
Stanton, 28, holds a full no-trade clause in his contract, which will pay him $295 million over the next 10 years with an opt-out after the 2020 season.
The St. Louis Cardinals, San Francisco Giants and Los Angeles Dodgers have all been linked to Stanton.