The Rs boss has spoken openly about his need to bring in reinforcements during the January transfer window if Rangers are going to stave off relegation.
QPR, bottom of the Barclays Premier League and five points adrift of safety, have so far this month brought in Marseille forward Loic Remy and defender Tal Ben Haim.
Redknapp is attending a work permit hearing in the hope of pushing through a deal for Chunnam Dragons left-back Yun Suk-young, while he has admitted an interest in Crouch and Anzhi defender Samba.
"These are two players whose names have been mentioned but at the moment we're not close to doing anything," he told BBC Sport.
"Crouch's name came up in a meeting with the chairman but I don't think Stoke want to sell him. On Samba, again the chairman is dealing with this. At this stage I don't think that's a goer.
"I like Christopher Samba and he is a very good player but at this stage I don't see him leaving Russia. Things can change but at this stage we're not close to doing anything."
Samba moved to Russian side Anzhi last February, while Crouch had a spell at Loftus Road earlier in his career and previously played for Redknapp at Southampton, Portsmouth and Tottenham.