Rodon has what, 3 more years until free agency? I kind of feel like signing an extension now would be dumb for him. He's better off gambling on himself for a year or so and then try to discuss an extension.
Edit: also, I know you just tossed out a number, but I'm definitely not signing a guy to a 6 year, $90 mill ($15m a year) until he proves he can stay healthy. Both sides are better off waiting until there is some sort of track record of health before signing an extension.