AA gets donked on drawy flop

[PinkMartini]

That's a pretty scary bet, since he's OOP and has two behind.

From his preflop call we can deduce he has something like Axs, and a mid-PP up to TT, since it is likely he'll raise JJ+.

vs. any set on that flop, you're about an 85% underdog.
vs. something like A8ss, you're a 60/40 underdog
vs. 88, you're a 60/40 favorite.
vs. AQss, you're a 60/40 favorite.

I don't see what other hands he would do this with. I might call the flop and see what he does on the turn. Any other connecting cards/ near PSB on the turn and I'd probably fold.