When about 50 players remained in the 2012 WSOP Main Event, Aussie David Balkin ended up in a heads-up duel against Gaelle Baumann from France. Before the river card had been dealt, Balkin had about 75% chance of taking home the pot with three of a kind 10s against Baumann's AJ (flush draw and straight draw). The river card gave Baumann the nut flush and Balkin moved all-in almost straight away. Baumann snapped called. Balkin took a quick look at Baumann's cards before heading to his friends in the crowd and celebrated. But in a matter of seconds someone said "You lost, bro!!" and Balkin realized his big mistake.
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