QPR manager Harry Redknapp is keen to strengthen his squad before the 11pm transfer deadline tonight.
Redknapp was his charge of Tottenham when the 25-year-old arrived at White Hart Lane from Brazilian club Internacional in 2010.
Sandro has dropped down the pecking order at Tottenham under current boss Mauricio Pochettino, and has not played a competitive match this season.
The player has made over 100 appearances for Tottenham since his £8million transfer in March 2010.
Follow Deadline Day on Sky Sports News HQ for all the latest news as clock ticks down toward the 11pm deadline