I like this deal a lot more for the Reds with the extension being announced. The Yankees basically gain two comp. round picks in Stowers and the 30s pick, which is much better than they would make out losing Gray to free agency, and the Mariners inexplicably come out of nowhere to gain a 50 FV prospect with Cano and Jean Segura gone. I gotta say, I kind of like it for all teams involved.
The Reds are also acquiring intriguing generic Yankees SP prospect Reiver Sanmartin, very nice.