AK hand with all in reraise back

[JC_Saves]

This guy had raised 3bb with 97s so I was not too concerned with his raise, so I just doubled it. I still had plenty of chips if I lay this down, but he could be on stonecold bluff as well.


PokerStars No-Limit Hold'em Tourney, Big Blind is t50 (9 handed) converter

saw flop|<font color="#C00000">saw showdown</font>

Hero (t1915)
MP3 (t2520)
CO (t2755)
Button (t2895)
SB (t1740)
BB (t2570)
UTG (t6870)
UTG+1 (t3335)
MP1 (t2985)

Preflop: Hero is MP2 with A[img]/images/graemlins/diamond.gif[/img], K[img]/images/graemlins/club.gif[/img].
<font color="#CC3333">UTG raises to t200</font>, <font color="#666666">2 folds</font>, <font color="#CC3333">Hero raises to t400</font>, <font color="#666666">5 folds</font>, <font color="#CC3333">UTG raises to t6870</font>, Hero ?