The Newcastle United man has been linked with a move to Turkey.
Turkish outlet Haberler reported this week that Galatasaray were interested in signing the Newcastle man.
It was reported by The Chronicle that Benitez wants to sell - not loan - six players before the transfer window shuts.
Asked whether the 30-year-old midfielder was among those up for sale, the Spaniard responded via The Shields Gazette: "To be fair we have four or five players on the radar of some clubs. We are waiting."
Newcastle host Reading at St James's Park tonight as the pre-season favourites for promotion look to kick-start their campaign after an eye-opening start.
The Magpies kicked off their Championship stint with a 1-0 defeat at Fulham, before then going down 2-1 at home to Huddersfield in a reminder that their return to the Premier League will be anything but simple.
It will be made easier, however, when Benitez has bought and sold the players of his choosing, which might then allow for a little more stability.
The former Liverpool and Chelsea manager has signed eight players in a summer spending spree totaling in the region of £65 million.