25NL - AJ call or fold?

[eWeet]

Okay so villain is 28/16/2.5


Full Tilt Poker - No Limit Hold'em Cash Game - $0.10/$0.25 Blinds - 5 Players - (LegoPoker HH Converter)

Hero: $67.90
BB: $15.55
UTG: $27.80
CO: $72.05
BTN: $31.45

Preflop: Hero is dealt J[img]/images/graemlins/spade.gif[/img] A[img]/images/graemlins/spade.gif[/img] (5 Players)
2 folds, <font color="red">BTN raises to $1.00</font>, <font color="red">Hero raises to $3.25</font>, BB folds, BTN calls $2.25

Flop: ($6.75) 7[img]/images/graemlins/club.gif[/img] A[img]/images/graemlins/heart.gif[/img] 6[img]/images/graemlins/diamond.gif[/img] (2 Players)
<font color="red">Hero bets $4.00</font>, <font color="red">BTN raises to $8.00</font>, Hero calls $4.00

Turn: ($22.75) 9[img]/images/graemlins/club.gif[/img] (2 Players)
Hero checks, <font color="red">BTN bets all-in for $20.20</font>, Hero ???


Not sure to call or fold here, looks marginal to me.