Alright, here's another one. This hand was featured in the wsop.com article, but then they removed it shortly thereafter (they have messed up the board and the whole cards, like there were three 9c's on the board or something) IIRC. I hope I am still remembering the hand correctly.

Day 4 in the Main Event, 2nd level of the day (3k/6k blinds and 1k antes). We are down to about 400 players. I have started the day with a 350k ish stack and quickly built it up to 600k+ in fairly standard spots, so my image shouldn't be all that crazy. Villain is an MTT pro with about $2M in tournament winnings. He has started a day with 900k+ stack but kept losing small/medium pots and is now down to 250k ish. In general, he seemed fairly aggro preflop as he almost never folded his BB and 3-bet quite a bit both IP and OOP. At this point though, I didn't think he was doing anything crazy.

A relevant history between us:

He raised EP and I defend my BB. He c-bet small on 773r, I call. Turn is an offsuit 5, checks through. River is a K, I check, he bets half pot (25k ish into 50k) and folds AK face up against my ~80k check raise.

Anyway, back to the hand.

I (100bb) raise QTcc in CO to 2.2bb and villain (40bb) 3bets to 6bb from SB, which I call (very standard I think?).

Flop (13.5bb) Td6h2c (one heart) he bets 4.5bb and I call.

Turn (22.5bb) 7h (backdoor hearts showed up) he tanks for a bit and checks with 28bb behind.

What do I do here, and why? Also, would you play earlier streets differently?

I will post my thoughts later on.