On the 5♥4♦2♠ flop, Elia Ahmadian in the big blind and Nicholas Zivolich from under the gun invested 20,000 each. Ahmadian bet the Q♥ turn for 50,000 to get called by Zivolich and then bet the 4♣ river for another 150,000. Zivolich quickly called and Ahmadian rolled over the 5♠4♠ for fives full of fours only for Zivolich to reveal the Q♠Q♦ for queens full of fours.
Ahmadian banged his hand on the table rail and exclaimed, "Jesus, how do you have queens there?"
Zivolich replied, "I saw the four first and thought you have quads."
Despite this massive loss, Ahmadian is still on a very healthy stack but now covered by Zivolich.