FTP MTT 100K (163$) - AKo sick river decision

[Impulse]

villain ist AD_84. ein hsmttreg. hab ihn auf 30/21 über fast hundert hände.

No-Limit Hold'em Tournament, 120/240 Blinds (9 handed) - Hold'em Manager Converter Tool from FlopTurnRiver.com

CO (t6220)
Button (t3873)
SB (t8788)
Hero (BB) (t11057)
UTG (t14175)
UTG+1 (t6575)
MP1 (t4983)
MP2 (t2579)
MP3 (t4975)

Hero's M: 30.71

Preflop: Hero is BB with A, K
UTG bets t480, 7 folds, Hero calls t240

Flop: (t1080) J, A, A (2 players)
Hero checks, UTG bets t675, Hero calls t675

Turn: (t2430) 10 (2 players)
Hero checks, UTG checks

River: (t2430) 6 (2 players)
Hero bets t1193, UTG raises t3840, Hero ?