Reports emerged this morning that momentum was growing between the Phillies and Marlins on a deal to send star catcher J.T. Realmuto to Philadelphia. Now, it seems, the sides have made yet further strides, to the point that they appear to be on the cusp of a completed transaction.

Joel Sherman of the New York Post cites multiple sources (Twitter link) for the proposition that the negotiations are “down to physical reviews” and the supplemental prospect pieces in the swap. He reports that top Phillies pitching prospect Sixto Sanchez would join young backstop Jorge Alfaro as the two key pieces of the package.

That report builds upon prior indications of a nearing agreement. Bob Nightengale of USA Today tweets that two of the other organizations that had been pursuing Realmuto now believe he’s destined to land with the Phils. Craig Mish of MLB Network Radio on Sirius XM tweeted that he expects a deal to occur today, while MLB.com’s Jon Morosi reported the growing momentum with the Philadelphia organization specifically.

In terms of the final details of the package, it seems that’s still open to discussion. (One wonders whether other Marlins players or third teams could also be involved.) Sherman reports (Twitter links) that players under consideration including top-ten organizational prospects Mickey Moniak, Adam Haseley, and Adonis Medina, with Jon Heyman of MLB Network reporting (Twitter links) that Alec Bohm, Luis Garcia, and Spencer Howard all also being talked about.

That bunch of names covers most of the top portion of the Phillies farm, so there’ still a good bit of variability in the outcome here. Sherman says the outlook for the deal still looks good — indeed, Sanchez’s medicals are already under review in Miami — but there’s haggling left to go. The Marlins want four total players and are unsurprisingly trying to pry loose some of the Phils’ best remaining farm assets.