Manchester United are scouting Napoli defender Kalidou Koulibaly.

He has been on the Red Devils' radar since Jose Mourinho was in charge, and Ole Gunnar Solskjaer recently sent a scout to watch him in action, says the The Sun.

United scout Jim Lawlor flew out to Italy to get a closer look at the centre-back in Napoli's Serie A clash with Fiorentina, which finished 0-0.

Koulibaly played the entire 90 minutes of the fixture alongside Nikola Maksimovic and helped young keeper Alex Meret - who has recently ousted David Ospina between the sticks - keep a clean sheet.

And Lawlor had nothing but positive things to say about the defender's performance when he reported back to Solskjaer.