$11 20k guaranteed, raise river?

[RonFezBuddy]

I'd be careful here. While it is likely that he has Ax, it's also possible that he was slowplaying a 9, or even A10 from the blinds (based on his action you observed earlier).

I don't like this board for raising because of the stage of the tourney you are in and the fact that his range is pretty wide from the blinds and you have no clue where you are.

I'd call.