$225: post flop help please

[darinvg]

Villain kind of sucks. 23/18 405 hands.

PokerStars Tournament, Big Blind is t100 (7 handed) Converter on pregopoker.com

UTG (t3280)
UTG+1 (t1345)
MP1 (t1575)
CO (t3305)
Hero (t1430)
SB (t1640)
BB (t925)

Preflop: Hero is in Button with 8[img]/images/graemlins/club.gif[/img] A[img]/images/graemlins/club.gif[/img]
<font color="gray">UTG folds</font>, <font color="gray">UTG+1 folds</font>, <font color="gray">MP1 folds</font>, <font color="gray">CO folds</font>, <font color="red">Hero raises to t250</font>, SB calls t200, <font color="gray">BB folds</font>

Flop: (t600) A[img]/images/graemlins/heart.gif[/img] 7[img]/images/graemlins/diamond.gif[/img] J[img]/images/graemlins/heart.gif[/img] (2 players)
SB checks, Hero checks

Turn: (t600) 5[img]/images/graemlins/heart.gif[/img] (2 players)
<font color="red">SB bets t275</font>, Hero calls t275

River: (t1150) K[img]/images/graemlins/club.gif[/img] (2 players)
<font color="red">SB bets t375</font>, <font color="gray">Hero?</font>