Benitez wants to act as Glen Johnson is taking time to recover from medial ligament damage. In the England international's absence, Jamie Carragher has been deployed in that role.
However Benitez, whose side face Bolton on Saturday, would like Carragher to return to the centre of the defence.
The Spanish boss knows time is against him to recruit with the transfer window about to close but a fresh face remains a possibly.
"We have to be careful with what we do," Benitez told the Liverpool Echo. "There are not too many good players around who are available and we will think about it. We still have some time but we will not rush if we cannot find the right player for this position."
Source: PA
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Source: PA