25/50 river spot.

[DanK]

Hey I'm basicly a lurker, but want to start posting more. Here's a hand that bothered me from tonight, I feel it was an easy dissision, but I just dident know the right play. Playing heads up with a guy who bought 1800 and ran it up to 4k after busting some other shortish stack with a set, I cover. We have only been playing heads up for 15 hands or so and hes folded alot preflop, so no read really.

I raise to 150 on the buton with 9sTs, he calls.

Flop is Ks 9h 5s. He checks, I pot he calls.

Turn is a Qc. He checks, I pot and he calls again.

River: 6s. He thinks 3-4 seconds and pushes for about 2.7 in to a pot the same size. I called, though dident feel good about it, and in retrospect think this was a fold. What's the default play here,
thanks, Daniel

Edit: He pushed 3.1k on the river...