Is margarito afraid to fight williams?

Now this is for the true boxingfans. Is margarito afraid of williams? i say yes cause after williams destroyed mitchell, he called out margarito and williams say that he would be ready to fight margarito in december and williams has been the mandatory challenger since may. Margarito that time after williams called him out in aug didn't have an opponent for the dec 2 fight. And now margarito got an opponent is number 5 contender un proven clottey. how is clottey the number 5 wbo contender more worthy to fight margarito and not margarito mandatory challenger in williams? clottey is the top 10 ww but so is williams lol. Hell williams is ahead of clottey in the top ten ww. I guess the sparring thing that williams keep saying of what he did to margarito is true cause if it isn't then why is margarito not steping up and fight his mandatory huh? hmmmm.