Amanda Staveley is still negotiating a deal to buy Newcastle United from Mike Ashley.
However, the Mirror suggest that the businesswoman is now prepared to inject an extra £10 million into the club.
Newcastle have been struggling for wins of late, and Benitez is known to want to add quality at St. James’ Park.
The Magpies have failed to win any of their last nine matches, with their lack of options clearly a concern.
Newcastle’s organisation has been good, but they have lacked quality at either end of the pitch.
Benitez’s side are now in 18th place in the Premier League table, with concerns rising that they could be relegated.
Staveley is still expected to take over at Newcastle before the January transfer window opens, but there is some work to done before a deal with Mike Ashley becomes possible.