On start of one PokerStars toureny, i was on position left to BB, i had KK and i raise a 3BB, the player in middle of table re raise and i just call,the flop was A K A , and i think that he have maybe two Aces or AK , i checked and he goes all in , i was fold with much thinking , and he show he's card's he was AA, and i think that is good fold by me .