$400k FTP, AK hitting K on turn

[radiihead]

villain hasn't been very active, but has been aggressive in the hands he's been involved in. Villain took almost his entire time allotted to make the call preflop if that means anything...Hes shown down only winners so far. This is in the first hour..

Full Tilt Poker
No Limit Holdem
Blinds: 20/40
9 players
Converter

Stack sizes:
UTG: $2970
Hero: $3835
MP1: $3525
MP2: $1695
MP3: $3130
CO: $2800
Button: $1285
SB: $4385
BB: $3375

Pre-flop: (9 players) Hero is UTG+1 with A[img]/images/graemlins/heart.gif[/img] K[img]/images/graemlins/club.gif[/img]
UTG folds, <font color="#cc0000">Hero raises to $120</font>, 4 folds, Button calls, SB calls, BB folds.

Flop: 9[img]/images/graemlins/spade.gif[/img] 3[img]/images/graemlins/diamond.gif[/img] 8[img]/images/graemlins/heart.gif[/img] ($400, 3 players)
SB checks, <font color="#cc0000">Hero bets $300</font>, Button folds, SB calls.

Turn: K[img]/images/graemlins/diamond.gif[/img] ($1000, 2 players)
SB checks, <font color="#cc0000">Hero bets $650</font>, SB calls.

River: 7[img]/images/graemlins/heart.gif[/img] ($2300, 2 players)
<font color="#cc0000">SB bets $1500</font>, Hero ??

[hERESY]

Why would he want more money in with A9? It almost looks as if you're playing TT+. Looks like he's holding 89/88/99. You've only invested 1000... I wouldn't make it 2500. Fold.

[kniper]

jt ftw. fold

[Fred Allen]

He called the $650 K on the turn and then lead out $1500 on the riv, looks like your beat.