Marquez fought Pacquiao to a draw and contraversial desicion. I feel Pacquiao is much faster and more powerful than Casamayor. Casamayor has lost a step or two the last few years. Katsidis is a decent fighter but no Marquez who is a counter-punching machine. Casamoyor is in trouble with this fight. I won't doubt Marquez will go down but he won't stay down and just outpunching Casamayor and making him look a fool at times. Marquez by UD