Nottingham Forest have signed Portugal Under-21 international Yuri Ribeiro and Alfa Semedo from Benfica.
Left-back Ribeiro, 22, has signed a permanent contract but the length of the deal has not been revealed.
Defensive midfielder Semedo, 21, is another Benfica academy graduate and has joined on a season-long loan.
Both Ribeiro and Semedo have played for Benfica's first team but have spent most of their time out on loan.
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