The Brazil international, a second-half substitute in Spurs' 1-0 defeat against Newcastle, is keen to return to winning ways after Sunday's loss at White Hart Lane
Sandro believes Tottenham are capable of beating any team if they play to their potential, including their next Premier League opponents Manchester City.
Spurs lost their last league outing against Newcastle - with Loic Remy's first-half goal and a string of fine saves from Tim Krul sealing an unlikely victory for the visitors - and take on City at the Etihad Stadium after the international break.
Tottenham are 14/1 with Paddy Power to beat Manchester City 1-0
"I believe we can win at City because if we play well ourselves we can beat any team. We are a good team," the Brazilian told reporters.
Spurs, who have scored only nine goals in 11 games this season, missed the chance to move into third place in the league by faltering against Newcastle, and Sandro has urged his side to put together a run of victories as they bid for a top-four finish this season.
"You have to win consecutive matches," the 24-year-old insisted.
"Like from now, to win five games consecutively for this dream to come back. This defeat to Newcastle was s***. Now it is the time to go to Manchester City and beat them.”
The Brazilian midfielder has returned to the Tottenham side after a knee injury ruled him out of the second half of the 2012-13 campaign, and has made seven Premier League appearances so far this term.