Pot control gone bad

[birdman6fo]

Villain is 20/8 over 250 hands...Do you guys call this river? Also, how is the flop check? I usually bet here but figured I'd mix it up.

Full Tilt Poker - No Limit Hold'em Cash Game - $1/$2 Blinds - 6 Players - (LegoPoker HH Converter)

SB: $228.65
BB: $200
UTG: $368.20
MP: $77
CO: $171.40
<font color="black">Hero (BTN): $197</font>

<font color="black">Preflop:</font> Hero is dealt K[img]/images/graemlins/spade.gif[/img] A[img]/images/graemlins/club.gif[/img] (6 Players)
UTG calls $2, MP calls $2, CO folds, <font color="red">Hero raises to $11</font>, 2 folds, UTG calls $9, MP folds

<font color="black">Flop:</font> ($27) A[img]/images/graemlins/heart.gif[/img] 7[img]/images/graemlins/club.gif[/img] 4[img]/images/graemlins/diamond.gif[/img] (2 Players)
UTG checks, Hero checks

<font color="black">Turn:</font> ($27) 2[img]/images/graemlins/club.gif[/img] (2 Players)
<font color="red">UTG bets $27</font>, Hero calls $27

<font color="black">River:</font> ($81) 3[img]/images/graemlins/spade.gif[/img] (2 Players)
<font color="red">UTG bets $81</font>, Hero...