The Blues star suffered a recurrence of a hamstring problem against Manchester City last Sunday and was expected to be sidelined for some time.
However, he has been included in the Portugal party for a 2010 World Cup qualifier against Sweden on 28th March and a friendly against South Africa on 31st March.
Former Manchester United assistant coach Queiroz has also handed a first call-up to Leixoes keeper Beto.
Atletico Madrid winger Simao and Deco's Stamford Bridge team-mate Ricardo Carvalho return to the fold after injury.
The Portuguese Football Federation have also revealed that an 'extra player' will be added to the squad following the weekend round of domestic action.
Portugal squad in full for World Cup qualifier against Sweden and friendly against South Africa:
Goalkeepers: Daniel Fernandes (Bochum/GER), Eduardo (Braga), Beto (Leixoes)
Defenders: Bruno Alves (Porto), Goncalo Brandao (Siena), Pepe (Real Madrid), Ricardo Carvalho (Chelsea), Nelson (Real Betis), Jose Bosingwa (Chelsea), Rolando (Porto)
Midfielders: Deco (Chelsea), Joao Moutinho (Sporting Lisbon), Maniche (Atletico Madrid), Raul Meireles (Porto), Duda (Malaga/ESP), Tiago (Juventus)
Forwards: Danny (Zenit St Petersburg), Simao (Atletico Madrid), Hugo Almeida (Werder Bremen), Nani (Manchester United), Cristiano Ronaldo (Manchester United)