Manchester United are negotiating with Napoli over the availability of star defender Kalidou Kouliably, according to reports.
The Senegalese international is one of the most highly-rated central defenders in world football and has been constantly linked with United over the past few seasons.
Ole Gunnar Solksjaer's side are in need of defensive reinforcements this summer with the futures of Phil Jones and Chris Smalling in serious doubt.
United manager Ole Gunnar Solksjaer is keen to bring in a defensive stalwart this year
And Italian news outlet Tuttosport is revealing that United are in 'constant contact' with Napoli about signing Koulibaly this year.