16$ str8 draw on flop

[JohnOwner]

how do you play this?

PokerStars Tournament, Big Blind is t100 (8 handed) Converter on pregopoker.com

UTG (t610)
UTG+1 (t530)
MP1 (t1345)
MP2 (t1250)
CO (t3390)
Button (t1400)
SB (t3775)
Hero (t1200)

Preflop: Hero is in BB with A[img]/images/graemlins/club.gif[/img] 7[img]/images/graemlins/diamond.gif[/img]
<font color="gray">UTG folds</font>, <font color="gray">UTG+1 folds</font>, <font color="gray">MP1 folds</font>, <font color="gray">MP2 folds</font>, <font color="gray">CO folds</font>, <font color="gray">Button folds</font>, SB calls t50, Hero checks

Flop: (t200) 5[img]/images/graemlins/heart.gif[/img] 6[img]/images/graemlins/heart.gif[/img] 4[img]/images/graemlins/diamond.gif[/img] (2 players)
<font color="red">SB bets t100</font>, Hero calls t100

Turn: (t400) T[img]/images/graemlins/club.gif[/img] (2 players)
<font color="red">SB bets t100</font>, Hero calls t100

River: (t600) 3[img]/images/graemlins/heart.gif[/img] (2 players)
SB checks, <font color="red">Hero bets t300</font>, <font color="gray">SB folds</font>