Ex- Manchester United defender Raphael Varane went undercover to attend former club Lens' match on Sunday. Varane, 31, announced his retirement in September after suffering a serious knee injury. The Frenchman had just signed for Italian side Como, who were promoted to Serie A last season. His contract at United expired in May , having spent three seasons with the Red Devils. Now free to do as he pleases on a weekend, Varane chose to back to France for Sunday's clash between Lens and Paris