In the beginning The big scene where Mike ( Matt Damon) loses everything, when KGB replies back and says "no, I don't have spades". And casually turns over the aces and walks away without even seeing Damons hand. That wasn't the best possible hand ( the nuts) aces's full of nines is second best. Mike could have had pocket nines for a hand of four of a kind. Four of a kind beats any full house.