AK against a very good player.

[DpR]

Call the turn. IF you dont improve on the river you have to decide whether this cillian will bet AK unimproved. Most players will check the river with AK here. You can probably fold the river UI, but some players will keep pushing even with AK.

Villians range could be as wide as 88+, AQs+. I think you have enough equity there to try to improve on the turn.