We missed the action preflop but saw Andrew Chen bet a for the amount of (what appeared) 27,000. His opponent made the call from the big blind and checked to Chen again on the turn. Chen, seated under the gun, checked behind and the appeared on the river. The big blind now bet out 38,000. Chen thought about it for a while and then raised to 123,000. The big blind thought again and then called. Chen showed his and the big blind mucked.