The 31-year-old swapped the north London club for the Spanish capital in 2013, winning four Champions Leagues during a medal-laden stint at the Bernabeu.
But Bale has found himself marginalised under Zinedine Zidane and a return to Spurs could be on the cards.
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It's understood talks are under way about a potential move back to the Premier League, with the Wales international keen to rejoin his former club.
