The France star has long been linked with a move to Madrid, who reportedly tabled an unsuccessful offer worth up to 180 million euros ($200 million) for Mbappe in August.
Despite the feted arrival of seven-time Ballon d’Or winner Lionel Messi, Mbappe has underlined his status as the key to PSG’s pursuit of European success.
His 24 goals this season easily outnumber those of the team’s second-leading scorer, Messi, on seven.
The 23-year-old equalled Zlatan Ibrahimovic’s tally of 156 goals in PSG colours in last weekend’s win over Saint-Etienne. Only Edinson Cavani has scored more goals for the club (200).
“As long as there’s no signature, we’re going to try everything. We’re going to do everything to keep him,” Leonardo told French sports daily L’Equipe.
The Brazilian denied claims from both Spanish and French media the club had offered Mbappe an annual salary of 50 million euros on top of a 100 million-euro “loyalty bonus”.
“It’s not true, we haven’t made a specific offer,” said Leonardo, who believes the financial aspect of any new deal is “secondary” in the eyes of Mbappe.
“The last thing we’ll put on the contract will be the amount.”