Turn third nuts, raised OOP on the river

[Johnnyj580]

MP2 is a relative unknown

Party Poker No-Limit Hold'em, $ Hero (10 handed) FTR converter on zerodivide.cx (http://www.zerodivide.cx/converter)

CO ($49.25)
Button ($15)
SB ($49.50)
Hero ($49.45)
UTG ($50.70)
UTG+1 ($20)
UTG+2 ($105.20)
MP1 ($5.75)
MP2 ($70.53)
MP3 ($93.92)

Preflop: Hero is BB with 4/images/graemlins/spade.gif, 5/images/graemlins/heart.gif. SB posts a blind of $0.25.
[color=#666666]1 fold</font>, UTG+1 calls $0.50, UTG+2 calls $0.50, [color=#666666]1 fold</font>, MP2 calls $0.50, [color=#666666]3 folds</font>, SB (poster) completes, Hero checks.

Flop: ($2.50) 8/images/graemlins/heart.gif, A/images/graemlins/club.gif, 6/images/graemlins/diamond.gif [color=#0000FF](5 players)</font>
SB checks, Hero checks, UTG+1 checks, UTG+2 checks, MP2 checks.

Turn: ($2.50) 7/images/graemlins/spade.gif [color=#0000FF](5 players)</font>
SB checks, [color=#CC3333]Hero bets $2</font>, UTG+1 folds, UTG+2 folds, MP2 calls $2, SB folds.

River: ($6.50) 2/images/graemlins/heart.gif [color=#0000FF](2 players)</font>
[color=#CC3333]Hero bets $3</font>, [color=#CC3333]MP2 raises to $10</font>, Hero calls $7.

Final Pot: $26.50


Does anyone reraise here? I know folding is out of the question getting 3-1.