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UTG: $160 (40 bb)
MP: $195 (48.8 bb)
CO: $747.36 (186.8 bb)
BTN: $893.45 (223.4 bb)
Hero (SB): $850 (212.5 bb)
BB: $302.19 (75.5 bb)

Preflop: Hero is SB with 3c Js Qh Ac
3 folds, BTN raises to $12, Hero raises to $40, BB folds, BTN calls $28

Flop: ($84) 9d Jc 4s (2 players)
Hero checks, BTN bets $64, Hero calls $64

Turn: ($212) 3s (2 players)
Hero checks, BTN bets $172, Hero calls $172

River: ($556) 9h (2 players)
Hero checks, BTN bets $472, Hero ???

Villain plays 79/53 and 3bets 18.2% in 6max games and his total fold stats are low and his total river bet stat is in line with most players. I don't know a ton about him- today was the first session I've seen him. I wish I had more info on villain, but obviously he's very LAG and plays a large percentage of the pots.

My question is, do you think the river is a call or fold? Feel free to comment on anything else about the hand.