Details to follow.
Edit:
The Yankees have struck a deal to acquire lefty James Paxton from the Mariners, according to Jeff Passan of Yahoo Sports (Twitter link). Top pitching prospect Justus Sheffield is coming to Seattle in return, per Ryan Divish of the Seattle Times (Twitter link). Completing the return are outfielder Dom Thompson-Williams and righty Erik Swanson, per Corey Brock of The Athletic (via Twitter).
This is the first major move of the winter, bringing a top-shelf starter to a New York club that has long been rumored to be seeking to boost its rotation. Having already inked CC Sabathia earlier in the winter, the Yanks now appear unlikely to pursue more than one additional starter, though they’ll still have ample financial flexibility to go after any available pitchers.