Mbappe, 18, has enjoyed a stunning first full season for Monaco and has become one of Europe's most sought after strikers.
He set an unprecedented European record by becoming the first player ever to score in each of his first four Champions League knockout appearances.
The France international also bagged 15 goals for Monaco as he helped guide them to their first Ligue 1 title since 2000.
And his deadly instinct in front of goal has attracted the interest of a host of top clubs including Real Madrid and Manchester United.
Real Madrid line-up next season with Kylian Mbappe Fri, May 5, 2017
Click through the gallery for a possible Real Madrid line-up next season with Kylian Mbappe
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GK: Keylor Navas
Sergio Ramos does not want Real Madrid to sign Monaco star Kylian Mbappe.
It is claimed Real are keen to bring Mbappe to the Bernabeu and have tried to do so by proposing a swap deal which will see Karim Benzema depart.
But Monaco have apparently slapped a world-record £130m price tag on Mbappe's head in a bid to ward off interest from potential suitors like Real.
And Spanish outlet Diario Gol claim Ramos is not keen on the idea of paying so much money for the youngster.
It is suggested that the Spain international thinks the transfer will be too risky as he is a player with a lot of promise, but may prove to not be worth the price Monaco are demanding.
The club captain also reckons he is not at the right level yet to be as good their attacking trio Karim Benzema, Gareth Bale and Cristiano Ronaldo.
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Sergio Ramos does not want Real Madrid to sign Monaco star Kylian Mbappe
Despite Ramos' being against a transfer for Mbappe, the Monaco star himself has cast doubt up on his future.
"My future? For the moment I do not know," Mbappe admitted in an interview with French outlet Telefoot.
"With the Vice President (Vadim Vasilyev) we agreed to aim for the title and we put everything aside because my aim was to win this title with the club that formed me.
"I put all the rumours and the questions regarding my future to the back of my head and I will assess them after the French national team.”
Mbappe has made 44 appearances across all competitions for Monaco this season and has scored 26 goals.