10 20 NL heads up, is this anything but a call?

[IHaveStrong9]

guy is pretty solid, haven't seen a bluff so far. his name is TheBrownMan7 if anyone has played with him.

Full Tilt Poker - No Limit Hold'em Cash Game - $10/$20 Blinds - 2 Players - (LegoPoker Hand History Converter)

Hero (BB): $1,923.60
SB: $1,287.00

Preflop: Hero is dealt 5[img]/images/graemlins/diamond.gif[/img] 7[img]/images/graemlins/spade.gif[/img] (2 Players)
SB calls $10.00, Hero checks

Flop: ($40) 2[img]/images/graemlins/spade.gif[/img] 4[img]/images/graemlins/spade.gif[/img] 7[img]/images/graemlins/heart.gif[/img] (2 Players)
<font color="red">Hero bets $20.00</font>, <font color="red">SB raises to $55.00</font>, Hero calls $35.00

Turn: ($150) 7[img]/images/graemlins/diamond.gif[/img] (2 Players)
<font color="red">Hero bets $100.00</font>, SB calls $100.00

River: ($350) K[img]/images/graemlins/heart.gif[/img] (2 Players)
Hero checks, <font color="red">SB bets $250.00</font>, Hero