The France defender, 24, joined Real on a six-year contract from Lyon last week in a deal worth up to £47.1m.

"I was in a wheelchair for a while and I spent between six and seven months in hospital doing rehabilitation so I could walk again," Mendy said.

"They told me I wasn't going to play again. Now I'm at Real Madrid."

Only two years ago, Mendy was still playing for French second-tier side Le Havre before joining Lyon in June 2017. He made his international debut against Uruguay in November.

"At the beginning I just couldn't believe it," Mendy said of his move to the La Liga giants.

"This is a great club and being able to sign a contract with them to me is something absolutely incredible, fantastic. I'm absolutely overjoyed and hopefully everything will go well here."

Mendy's arrival has taken Real Madrid's summer spending to close to £300m.

The club have already signed Belgium forward Eden Hazard from Chelsea for a fee that could exceed £150m, and Serbia striker Luka Jovic from Eintracht Frankfurt for a reported £53m.

In March, they signed Porto defender Eder Militao for £42.7m.