The Brazilian international made the switch to Loftus Road on the final day of the transfer window, and Redknapp has hinted that he could include the 25-year-old in his starting lineup for his team's fixture at Manchester United on Sunday afternoon.
Redknapp told reporters: "Sandro has been excellent. I was delighted to bring him here. I can't wait to get him into the team.
"Sandro will add to the experience that we've got here. I think that he'll be a massive influence on the team."
Redknapp and Sandro previously worked together at White Hart Lane, where the former Internacional player made 81 Premier League appearances during his four years at the club.