Chelsea and Manchester City both being interested in Kyle Walker will be worth millions to Tottenham.
Daniel Levy was already set to slap a significant asking price on the 26-year-old if he is to sell to a direct Premier League title rival.
But a potential tug-of-war between Chelsea and City will only drive the price up ahead of what promises to be an interesting summer for Walker.
Tottenham are relaxed about the situation. Walker is contracted with the north London club until 2021 and is due to join his team-mates for their post-season friendly in Hong Kong next week.