The Brazilian got a 60-minute run-out during a training-ground friendly.
QPR FC (@QPRFC) February 12, 2015
The Brazilian had been suffering from a knee ligament injury that had kept him out for several weeks, but is slowly making his comeback to first-team action.
QPR lost the friendly 1-0 but several first-teamers, including Sandro, Mauro Zarate, Eduardo Vargas and Adel Taarabt, enjoyed some game time.
QPR skipper Joey Barton, meanwhile, said the clash was a good workout for both sides on social media and was pleased to see Sandro back in action.
The R's are fresh off the back of possibly their biggest result of the season so far - their first away win of the campaign at Sunderland.
Caretaker boss Chris Ramsey guided QPR to the 2-0 victory and reports state he has now been given the manager's job until the end of the season.
Barton also shared his opinion on that particular bit of news on Twitter:
Good news also on Chris Ramsey. V good since he has come in. Got group back on track. Lots for us all to do now to keep club in the league.— Joseph Barton (@Joey7Barton) February 12, 2015
QPR are not in action this weekend, having been knocked out of the FA Cup by Sheffield United, and travel to Hull City for their next Premier League game the following weekend.