Goalkeeper Anatoliy Trubin and winger Benji Lukebakio will remain at Benfica, after speculation about possible departures during this transfer window.
Two days before the market closes in Portugal, Benfica's SAD are still working to place surplus players in the squad.
Sunderland are said to have submitted a proposal of around 20 million euros for one of Benfica's players, in an attempt to strengthen their squad during the final days of the market.
