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Ronaldo missed Real Madrid's first Liga loss of the season at Seville last weekend with an ankle injury.
But Queiroz believes he will be fit and included him along with Rangers midfielder Pedro Mendes and Malaga striker Edinho among his 24-man squad.
Queiroz put his side through their paces at Obidos on Tuesdsay with six players missing because of fitness worries.
Portugal, who are third in Group One with 13 points, need to win both matches and for second-placed Sweden to slip up in Denmark, to book their ticket to South Africa.
