QPR loanee Tom Carroll wants to "make it at Tottenham" but is prepared to consider all of his options at the end of the season.
Ilkay Gundogan has commited his future to Borussia Dortmund by signing a new contract.
The 28-year-old has joined the club from Internacional for an undisclosed fee and has signed a two and a half year deal.
He becomes Gus Poyet's fourth acquisition this month following Spanish full-back Marcos Alonso's arrival on loan and the captures of Scocco's compatriots Oscar Ustari and Santiago Vergini.
Scocco was in the stands at the Stadium of Light as the Black Cats beat Stoke 1-0 to climb out of the Barclays Premier League relegation zone.