Quote Originally Posted by ecrujet
Your $2.50 will net you $5.00 I would call, at 43 he could be playing anything.
Yes, he could have anything...including a 3.
If the situation was reversed and the villain had checked behind on the (
edit: this said river, but I meant turn), I might be more likely to call, but he could easily have a 3 and not bet it afraid he was still behind a J. When Hero checks behind, villain figures his 3 is good and pots it.

But, then again maybe he's an idiot betting a ten.

Depending on my read of the villian, I might bet again on turn. If he had a J he likely would have raised the flop bet. When another 3 comes on the turn it would be hard to call another bet without a J.