($11 MTT) Flopped set - too slow or couldn't have seen it coming?

[Saku]

Hi all, would like to have some honest critique of my play here. No reads on the Villain. Limped hoping for a set (not much PFR at the table) and hit it, but only called the flop bet not really fearing any draws. The turn didn't set off any alarms either, and the push to me could have meant a nything from a draw to overs to two pair. Unfortunately he flipped over 52d and the river failed to pair the board. Should I be more paranoid here or was the smooth call on the flop appropriate?


PokerStars No-Limit Hold'em Tourney, Big Blind is t100 (9 handed) converter

MP1 (t2740)
MP2 (t6091)
MP3 (t1142)
CO (t1540)
Button (t2015)
SB (t3420)
BB (t302)
UTG (t2045)
Hero (t1195)

Preflop: Hero is UTG+1 with 6[img]/images/graemlins/club.gif[/img], 6[img]/images/graemlins/heart.gif[/img].
UTG calls t100, Hero calls t100, <font color="#666666">1 fold</font>, MP2 calls t100, <font color="#666666">1 fold</font>, CO calls t100, <font color="#666666">2 folds</font>, BB checks.

Flop: (t550) 9[img]/images/graemlins/heart.gif[/img], 3[img]/images/graemlins/diamond.gif[/img], 6[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(5 players)</font>
BB checks, UTG checks, Hero checks, MP2 checks, <font color="#CC3333">CO bets t140</font>, BB folds, UTG folds, Hero calls t140, MP2 folds.

Turn: (t830) 4[img]/images/graemlins/heart.gif[/img] <font color="#0000FF">(2 players)</font>
<font color="#CC3333">Hero bets t400</font>, <font color="#CC3333">CO raises to t1300</font>, Hero calls t555 (All-In).

River: (t3085) A[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(2 players, 1 all-in)</font>

Final Pot: t3085