The 21-year-old French defender joined Los Blancos from Lens back in 2011 during Mourinho’s spell in charge at the Bernabeu.
And the former Real Madrid boss says that the La Liga side managed to snatch the defender from under the noses of United.
Mourinho told Telefoot: “I was on holiday and in Madrid.
“Zinedine Zidane arrived with a DVD and I thought, ‘That player, with two years’ work with us, would be fantastic’.
“Varane had one foot at Manchester United but Real Madrid are very strong and Rapha came to us.”
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