$1.50 NLHE MTT: Another Aj hand

Hero (MP+2): 1,500
CO: 1,285 (VPIP: 16.67, PFR: 0.00, 3Bet Preflop: -, hands: 6)
BTN: 1,470 (VPIP: 20.00, PFR: 0.00, 3Bet Preflop: 0.00, Hands: 5)
SB: 1,480 (VPIP: 0.00, PFR: 0.00, 3Bet Preflop: -, Hands: 2)
BB: 1,735 (VPIP: 50.00, PFR: 0.00, 3Bet Preflop: -, Hands: 2)
UTG: 1,500 (VPIP: 16.67, PFR: 16.67, 3Bet Preflop: 33.33, Hands: 12)
UTG+1: 1,500 (VPIP: 18.84, PFR: 17.29, 3Bet Preflop: 17.14, Hands: 145)
MP: 1,500 (VPIP: 0.00, PFR: 0.00, 3Bet Preflop: -, Hands: 2)
MP+1: 1,530 (VPIP: 29.25, PFR: 17.20, 3Bet Preflop: 4.55, Hands: 112)

SB posts SB 10, BB posts BB 20

Pre Flop: (pot: 30) Hero has J:diamond: A:heart:

fold, fold, fold, fold, Hero raises to 60, fold, BTN calls 60, fold, fold

Flop: (150, 2 players) A:spade: T:diamond: T:spade:
Hero bets 75, BTN calls 75

Turn: (300, 2 players) 8:club:
Hero bets 120, BTN calls 120

River: (540, 2 players) 8:heart:
Hero checks, BTN bets 270, Hero ???

Flop is good, certainly checking the turn. River I'm sighcalling.