Inter had been closing in on Cape Verde born defender Rolando, but now Queens Park Rangers may be frontrunners for his signature.
Rolando was at Inter on loan last season and acquitted himself well during his 29 appearances before returning to Porto.
The Italian side have been repeatedly linked with a permanent move for Rolando over the last few months and some experts regarded the deal as a formality.
It is suggested that Redknapp overruled objections amongst the QPR directors when he decided to sign Ferdinand and now he may have to do a U-turn in January.
While Inter have a good relationship with Rolando, QPR may have greater financial resources at their disposal and the 29-year-old may be lured by the chance to test himself in the Premier League.