I don't know that I've ever heard of a suspended player getting an extension this soon after being initially signed. Makes one wonder why they didn't just do this in the first place ... probably would've been cheaper.
Probably thinking too much into this, but being that McDonald is a SS, maybe they've seen Jones look oddly bad in the preseason and are using this as a low cost motivational ploy for him to earn that nice extension.
Either way, McDonald is good so as long as he can keep his head on straight and the contract is cheap, I'm cool with it.