Yep. Unless Tony had some crazy language written into his contract, all the Rangers are obligated to do is pay him.
I don't believe that is true. They aren't obligated to play him. They can scratch him. They can put him on the taxi squad or in the AHL. I do not believe they can tell him to "stay home" and I believe there was a player a couple years ago who filed a grievance for something like that. I'm trying to remember who it was.
If they want to terminate his contract for breach they can try and do that.
If they want to suspend him for violation of his contract they can do that (according to the rules of the CBA).
If they want to scratch him or taxi squad him they can do that.
But if I remember the prior grievance correctly, not allowing a player to practice/train at team facilities was an issue. One of the national guys, Bobby Mac, Dreger, Friedman.. even mentioned this w/ regard to TDA. For now it's not an issue because all parties are trying to get a deal done.
But yeah, zero chance the NHLPA will sit by with that. They might lose the fight, but they'd fight, and most likely the Commish would step in for a resolution (loan to Europe or something) until the end of the year when a buyout could happen.