According to sources, Wharton is open to the move but wants assurance from Liverpool's management that he will receive regular playing time. The England international has made significant progress in his career over the past two seasons with Palace and his former club, Blackburn Rovers.
As part of Wharton's transfer, Crystal Palace will receive 15% of any potential sell-on fee generated from his departure.
Several top clubs, including Bayern Munich and Real Madrid, are also monitoring Wharton's situation.