NL25 Set of Aces against big stack and small stack

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Party Poker - No Limit Hold'em Cash Game - $0.10/$0.25 Blinds - 9 Players - (LegoPoker HH Converter)

SB: $9.90
BB: $24.15
UTG: $2.77
<font color="black">Hero (UTG+1): $48.77</font>
MP1: $8.69
MP2: $60.40
MP3: $14.75
CO: $15.15
BTN: $24.30

<font color="black">Reads: </font><font color="blue">No reads on MP2
MP1 seems to be a calling station, VPIP 50%</font>

<font color="black">Preflop:</font> Hero is dealt A[img]/images/graemlins/spade.gif[/img] A[img]/images/graemlins/heart.gif[/img] (9 Players)
UTG calls $0.25, <font color="red">Hero raises to $1.30</font>, MP1 folds, MP2 calls $1.30, MP3 calls $1.30, 4 folds, UTG calls $1.05

<font color="black">Flop:</font> ($5.55) A[img]/images/graemlins/diamond.gif[/img] 8[img]/images/graemlins/club.gif[/img] 5[img]/images/graemlins/club.gif[/img] (4 Players)
UTG checks, <font color="red">Hero bets $2.21</font>, MP2 calls $2.21, MP3 calls $2.21, UTG folds

<font color="black">Turn:</font> ($12.18) 4[img]/images/graemlins/spade.gif[/img] (3 Players)
<font color="red">Hero bets $4.50</font>, MP2 calls $4.50, MP3 calls $4.50

<font color="black">River:</font> ($25.68) J[img]/images/graemlins/diamond.gif[/img] (3 Players)
<font color="red">Hero bets all-in for $40.76</font>