Calderon believes that Lewandowksi's age may count against him when comparing the two strikers, according to 'the sun'.
"The objective for Real Madrid, no doubt, is Kane.
"If they want a player for the next five or six years they are going to go for Kane but [Spurs chairman Daniel] Levy is going to ask a fortune for him.
"As far as I know, Tottenham is not willing to let him go but Bayern also say Lewandowski is not going anywhere.
"[Bayern chief executive Karl-Heinz] Rummenigge has said he can bet that he will be in Bayern next season but we have heard that so many times, and in my experience it is the player who has the final decision of where to go."