Call this river bet?

[icetonez]

Just an orbit or two through. No reads on SB. Also is this a preflop fold with only one caller so far?
PokerStars 1/2 Hold'em (10 handed) converter

Preflop: Hero is MP3 with T[img]/images/graemlins/diamond.gif[/img], Q[img]/images/graemlins/diamond.gif[/img]. CO posts a blind of $1.50.
UTG calls, UTG+1 folds, UTG+2 folds, MP1 folds, MP2 folds, Hero calls, CO (poster) checks, Button folds, <font color="#CC3333">SB raises</font>, BB folds, UTG calls, Hero calls, CO folds.

Flop: (8.50 SB) 2[img]/images/graemlins/diamond.gif[/img], 7[img]/images/graemlins/diamond.gif[/img], 5[img]/images/graemlins/heart.gif[/img] <font color="#0000FF">(3 players)</font>
<font color="#CC3333">SB bets</font>, UTG folds, <font color="#CC3333">Hero raises</font>, SB calls.

Turn: (6.25 BB) A[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(2 players)</font>
SB checks, Hero checks.

River: (6.25 BB) T[img]/images/graemlins/heart.gif[/img] <font color="#0000FF">(2 players)</font>
<font color="#CC3333">SB bets</font>, Hero ?.