Experts' Picks: Pacquiao-Marquez III

In the third meeting of what has been a terrific rivalry, Manny Pacquiao will try to dispel any doubts about the outcome of his first two bouts with Juan Manuel Marquez. Pacquiao, the welterweight division's top fighter and boxing's pound-for-pound king, will take on Marquez, a lightweight titlist, Saturday at the MGM Grand in Las Vegas at a catchweight of 144 pounds -- a weight at which many believe the older, seemingly slowing Marquez, 38, will have trouble matching up with Pacquiao, 32. Only time will tell -- unless you believe our panel of ESPN.com boxing experts, who offer their takes on Pacquiao-Marquez III here.