Manchester United have drawn up a five-man shortlist as they plan to buy a new centre-half this summer.
ESPN says Real Madrid's Raphael Varane, Sevilla's Jules Kounde, RB Leipzig's Dayot Upamecano, Aston Villa's Tyrone Mings and Braga's David Carmo have been identified as the centre backs on manager Ole Gunnar Solskjaer wishlist.
Varane's future at Spanish giants Real is reportedly up in the air with the France international yet to sign a contract extension on his current deal that expires in 2022.
Kounde has become one of the most highly-rated young defenders in Europe.
Mings could potentially complete an all-English back four with Aaron Wan-Bissaka, Harry Maguire and Luke Shaw.
Carmo is another left-footed centre-back option and the Red Devils have reportedly been tracking his progress for a while .
Upamecano has been linked with a move to Old Trafford during the last two transfer windows but ESPN claim that United are increasingly resigned to the fact that Bayern Munich have stolen a march on the in-demand Leipzig star.