Chris Ramsey has warned Sandro he will not walk straight into the QPR side following his return to the club.
Sandro, 26, is due to arrive back in London on Friday after an issue with his work permit was finally resolved.
But Rangers head coach Ramsey is in no rush to select the injury-plagued midfielder ahead of the likes of Karl Henry and Alejandro Faurlin.
Ramsey said: “I spoke to Sandro last night and he’s travelling back, which I’m quite pleased about.
“Any team misses him, but I think the players who are here have done their job. So, if he comes back and is fit, he’s going to have to fight his way into the team like everyone else.”
Sandro, signed from Tottenham for £6m a year ago, missed the final three matches of last season after it transpired that he did not have a valid work permit.
He was therefore unable to re-enter the country after a holiday in his native Brazil until the correct paperwork had been issued.
Troubled by knee problems before and after his move from Spurs, Sandro made 17 appearances for QPR last season.
Ramsey and Rangers director of football Les Ferdinand were on the coaching staff at Tottenham during his time at White Hart Lane.