Manchester United are challenging Real Madrid for Sporting CP winger Gelson Martins.

The Sun says several European giants have been scouting academy star Gelson, who has been touted as the next Nani.

Manchester United have a good record in signing Sporting stars, with Cristiano Ronaldo joining Nani in making the move.

Record claim Jose Mourinho is set to go toe-to-toe with his former employers to sign the wonderkid.

Gelson has established himself in Jorge Jesus' first team this season, scoring two goals and setting up another four.