Usually when you pick up ace king against your opponent's ace king, you expect to chop. That's just what Bob Lauria was thinking when he had Jose Mendez all in with [As][Kc]. When the flop fell [2s][Ks][Th], Jose picked up a backdoor flush draw, still an improbability. The [Js] turn opened the door, and amazingly the [5s] hit the river to complete Jose's flush. After making a face, Bob paid off the all in, and Jose now sits on over 500,000.