Floyd Sr. can't believe or comprehend that Manny Pacquiao is a clean natural warrior. Floyd St. thinks Pac is cheating with steroids. Floyd Sr. is basically admitting that Pac is superman, he is amazing, his last two victories have been sensational, so in FloydSr's logic he beleives Pac couldn't have done it without using steroids. Floydsr is showing some signs of awe, respect and fear of Pacquiao by rushing to judgement that he must be on roids. and we know what happens when floyd fears someone - HE DUCKS THEM FOREVER.
that's what the person in the position of weakness does when they feel threatened, intimidated and confused - they accuse the guy who is superior of cheating.