This is an interesting hand that a friend posted in a group chat. He only gave a pretty brief description of position, bets etc, but I still found the spot to be pretty unusual. I'll try my best to recreate the hand as I see it.
Villain 1: Approx 100bb. Middle aged asian who plays well, and aggressively in the right spots.
Hero: approx 100bb. Unknown playstyle. Lets assume slightly conservative.
Pre-Flop
Villain opens from early or mid position, standard open. Folds to hero on btn with 9
9
, who 3bets 3x. Folds to villain who calls.
Flop
J
9
7
. Pot approx 20bb.
Villain checks, hero cbets 1/3rd pot. Villain Check raises 20-25bb.
Hero???