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BANGKOK (AP) — Manny Pacquiao's trainer says the Filipino boxer may contemplate retirement if he fails to perform well in his upcoming bout against Brandon Rios.

Fredy Roach says if the Rios fight "does not go well, we will seriously talk about his retirement." But he added that Pacquiao was training well for the Nov. 24 bout in Macau.

Pacquiao faces Rios after successive losses to Timothy Bradley in a much-criticized judges' decision and a stunning knockout against Juan Manuel Marquez.

He has been preparing in the southern city of General Santos City, which was not affected by the typhoon that recently hit the east coast of the Philippine.