1/2 - AA, big pot, lots of action.

[Sushiglutton]

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Sample sizes would help but UTG is the type to overplay his hands; he shouldn't have worse than KK here ever if he was playing right but it wouldn't be out of the question for him to show up with AT. The caller almost never has a better hand once he calls 4th.

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AF converges very slowly. Also some players are very aggro in blind battles etc. Which would be totally different than this spot. Capping this flop with AT is a little bit too stupid given all the action? Also if he holds AT we don't really want him to fold the turn.