We don't have a lot of info on villain despite having played with them for 4 hours. Middle aged. He lost a big pot when he bet the river after making a straight and he got raised and he called and lost vs a flush.
Hero has 26K,
Villain has 17K
30 is a starting stack
blinds 200/300 300 BB ante
we are 10 handed
Preflop Hero has A
K
in sb
UTG raises to 800, MP calls, 2 folds, CO calls, 2 folds, Hero 3 bets to 3K, BB folds UTG folds, MP calls, CO folds
Flop: 9c 7d 3d (headsup)
Hero bets 2.5K, villain calls
Turn: 6c
Hero?
Do we
1) Shove all-in
2) Bet something that commits us?
3) do something else?