The Real Madrid man, who is between roles as sporting director and youth team Coach at the club currently, is a known admirer of Bale, who has been increasingly linked with a summer switch to Los Blancos.
And, reflecting on his season, Zidane believes that the newly-crowned PFA Player and Young Player of the Year could prove quite costly, but still represent value.
“After the season he has just had - and still being so young of course - Gareth Bale is going to be one of the most expensive players in the world if he decides to move,” Zidane told reporters this week.
“Tottenham could command €40m, €50m, maybe even €60m for him. It is a lot of money - but there are maybe three or four teams in the world that can pay that sort of transfer fee - and it won't put them off.
“A player like Bale can be the difference between a big club winning the league or Champions League.
“They would be getting the best player in Europe this season - and he is at an age where he can still play at the top for another 10 years.
“What I like about him is that he has this electric pace - but also a big footballing brain to go with it. That is very rare.”
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