Junior Moraes, Brazilian born, is believed to have been granted naturalisation in violation of FIFA rules.
Portugal were held to a 1-1 draw against Serbia to follow up their stalemate with Ukraine last week.
Santos sprung some surprises in his team selection
Ricardo Pereira, João Cancelo, Cedric Soares, Nelson Semedo? Who would you call up
A look at Portugal's central midfield options:
Fernando Santos faces the unenviable task of having to choose just 23 players from a national pool stacked with ability.
Impressive victory sees Portugal sit top of group D.
A look at the frightening depth Portugal currently have in their national
Could this be Portugal’s squad come November?