Former Manchester United, Real Madrid and France defender Raphael Varane has retired from football at the age of 31.

Varane joined Italian side Como on a free transfer in July but suffered a knee injury on his debut against Sampdoria last month.

The centre-back says he will stay at the club in a non-playing role.

“I hold myself to the highest standard, I want to go out strong, not just holding on to the game,” he wrote on Instagram. “It takes a big dose of courage to listen to your heart and your instinct.”

More to follow.