Pacquiao vs Marquez 3 a preparation for Mayweather?

Pacquiao vs Marquez 3 a preparation for Mayweather?

Many speculations occur that the Pacquiao vs Marquez 3 fight is just a preparation of Pacquiao vs Mayweather dream match. Although there seems no light in these dream match, many fans are waiting for it to come true. Many boxing analysts said that Pacquiao has slowed down in the previous years. Is this a sign that Pacquiao is going to lose over Juan Manuel Marquez? I think that's not enough basis because Manny Pacquiao gained weight for the past years in order for him to win different world titles in different weight classes. If he didn't gained weight, he won't be famous as he was today. I think Pacquiao is still competetive in a 145 lbs. match against Marquez. On the other hand, many boxing analysts said that Marquez won't be able to keep up with the speed and power of Pacquiao because he is getting older. One of the advantages of Pacquiao is his age. According to boxing analysts, age would play a big factor on how your body will respond from your brain.  Would this factor affect the performance of Marquez against Pacquiao on their 3rd and final showdown? I guess let's just find out and watch out for news updates of the much awaited Pacquiao vs Marquez 3 fight!