Saturday, Nov. 23 (HBO PPV, 9 p.m. ET)
Venetian Macao's CotaiArena, Macau // Español
For both Pacquiao and Rios, ruggedness and conditioning have tipped the scale in their favor in numerous fights. But whereas Rios no longer has to worry about being gassed by his weight-draining efforts (as he clearly was against Richar Abril, and possibly John Murray), Pacquiao raises some doubts. Although he showed renewed vigor in the loss to Juan Manuel Marquez, he had appeared vulnerable and lacking that second wind in his previous few fights.
-- Bernardo Pilatti