The Mirror reports that Barcelona chief scout Albert Valentine watched the Welsh star in action for Tottenham in their win at Fulham on Sunday.
Bale’s current £75,000-a-week contract with Spurs is set to expire in 2015.
But Barca coach Pep Guardiola is now ready to make a move for Bale as the club are keen to strengthen on the left side.
Inter Milan, AC Milan and Real Madrid have previously been linked with a move for Bale.
