Difficult river decision.

[poboy]

Villian is new to the table but seems on the lagish side, hasn't shown down anything yet. Thoughts?

PokerStars No-Limit Hold'em, $0.25 BB (8 handed) FTR converter on zerodivide.cx

Button ($8.90)
SB ($47.45)
Hero ($26.15)
UTG ($14.15)
UTG+1 ($6.50)
MP1 ($11.55)
MP2 ($53.50)
CO ($23.95)

Preflop: Hero is BB with 9[img]/images/graemlins/heart.gif[/img], A[img]/images/graemlins/club.gif[/img].
<font color="#666666">3 folds</font>, MP2 calls $0.25, CO calls $0.25, <font color="#666666">1 fold</font>, SB completes, Hero checks.

Flop: ($1) 9[img]/images/graemlins/club.gif[/img], 5[img]/images/graemlins/heart.gif[/img], 2[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(4 players)</font>
SB checks, <font color="#CC3333">Hero bets $1</font>, MP2 folds, <font color="#CC3333">CO raises to $2.75</font>, SB folds, Hero calls $1.75.

Turn: ($6.50) Q[img]/images/graemlins/diamond.gif[/img] <font color="#0000FF">(2 players)</font>
Hero checks, <font color="#CC3333">CO bets $4</font>, Hero calls $4.

River: ($14.50) 3[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(2 players)</font>
Hero checks, <font color="#CC3333">CO bets $16.95 (All-In)</font>, Hero ?