Hand from tonights 20 deepstack not sure on the converter

[GARDOCK]

PokerStars Game #4753083209: Tournament #23515304, $20+$2 Hold'em No Limit - Level III (25/50) - 2006/04/26 - 19:44:32 (ET)
Table '23515304 34' 9-max Seat #6 is the button
Seat 1: lucky9 (25740 in chips)
Seat 3: MikeyPatriot (7805 in chips)
Seat 4: Kaka'ako (10460 in chips)
Seat 5: pokerman177 (8120 in chips)
Seat 6: riverstr8 (4360 in chips)
Seat 7: Hoogmeister (10655 in chips)
Seat 8: hero (16325 in chips)
Seat 9: Alcova (3435 in chips)
Hoogmeister: posts small blind 25
Hero: posts big blind 50
*** HOLE CARDS ***
Dealt to Hero [Ah Ac]
Alcova: calls 50
lucky9: calls 50
MikeyPatriot: folds
Kaka'ako: calls 50
pokerman177: folds
riverstr8: folds
Hoogmeister: calls 25
Hero: raises 350 to 400
Alcova: calls 350
lucky9: calls 350
Kaka'ako: folds
Hoogmeister: calls 350
*** FLOP *** [4h 4d 5c]
Hoogmeister: checks
Hero: bets 800
Alcova: folds
lucky9: calls 800
Hoogmeister: folds
*** TURN *** [4h 4d 5c] [4c]
Hero: checks
lucky9: bets 2900
hero: calls 2900

Going into the river I have roughly 9k. I am almost positive I have the best hand but have him on some type of drawing hand on the flop that is bluffing the turn. What do you do going first on the river, and does the card that rivers affect that.

[PokerJokerAA]

If he is bluffing with a drawing hand, then all you can do is check the river to hope to induce another bluff, as he will not call any bet. Maybe if river is 6 or 7 you could possibly just push, as that might have paired whatever straight draw hand he has, and if you check to him he might just check behind hoping for a cheap showdown.