3rd one card nut flush on river; call or fold?

[oli1980]

<font color="blue"> Here I wasn't sure if should call or fold. I am getting 2:1 and if a J high Flush playes the same the call is correct... Is this call +ev or -ev?
</font>
Prima Network No-Limit Hold'em, $0.50 BB (4 handed) Hand History converter (http://www.learnhowtoplaypokerfree.com/convert/convert.cgi) Courtesy of PokerZion.com (http://PokerZion.com)

SB ($47.24)
BB ($104.66)
UTG ($40.83)
Hero ($80.22)

Preflop: Hero is Button with K/images/graemlins/diamond.gif, Q/images/graemlins/club.gif.
<font color="#666666">1 fold</font>, <font color="#CC3333">Hero raises to $2</font>, SB calls $1.75, <font color="#666666">1 fold</font>.

Flop: ($4.50) 3/images/graemlins/club.gif, 9/images/graemlins/club.gif, 9/images/graemlins/diamond.gif <font color="#0000FF">(2 players)</font>
SB checks, <font color="#CC3333">Hero bets $3.25</font>, SB calls $3.25.

Turn: ($11) 2/images/graemlins/club.gif <font color="#0000FF">(2 players)</font>
SB checks, Hero checks.

River: ($11) 8/images/graemlins/club.gif <font color="#0000FF">(2 players)</font>
<font color="#CC3333">SB bets $11</font>, Hero calls $11.

Final Pot: $33

[doppelganger]

Getting 2:1 I think this is fine. He'll probably play a nine with any club like this and you just caught up against smaller flushes that made it on the turn.

[Hebel]

I dont really like it, its a bad spot for him to be bluffing and hes certainly not potting a raw 9. I think u see the A of clubs here a lot, as well as 33

[doppelganger]

Yeah, I suppose you're right. We need a read that he'll do this purely on turn weakness I suppose.

[ickismang]

the check on the turn possibly shows his flush and the fourth club may have scared him which reasons his big bet on the river. i'd call this one

[Altreg]

this is call,and please bet the turn