Manchester United are interested in signing Crystal Palace right-back Aaron Wan-Bissaka, according to the Sun.

However, they face a battle to secure the services of the 21-year-old with Manchester City, Arsenal, Bayern Munich and Borussia Dortmund also keen on the defender.

United have been keeping a close eye on Wan-Bissaka’s performances this season and are said to be lining up a £40m offer for the player.

The full-back only made his senior debut last February but has quickly established himself in Palace’s first team under manager Roy Hodgson.

With captain Antonio Valencia being tipped to leave at the end of the season, along with Matteo Darmian, a move for another right-back looks to be on the cards.

Still, with Ashley Young having recently signed a new contract and Diogo Dalot performing well when called upon, Wan-Bissaka would face strong competition for a place if he were to move to Old Trafford.