Newcastle United manager Rafael Benitez has thrown his weight behind Napoli defender Kalidou Koulibaly who has consistently been linked with a transfer to the Premier League.
Chelsea and Manchester United are the two Premier League clubs keen on a move for the 27-year-old.
Benitez spoke about Kalidou Koulibaly in a chat with reporters via the Daily Express.
The Newcastle United boss backed the Senegalese international centre back to be an instant hit in the Premier League in the event that he completes the much publicised transfer to the English top flight.
Kalidou Koulibaly played for Rafael Benitez while he was the manager of Italian Serie A giants Napoli.
Manchester United have emerged as slight favourites for the former Genk defender ahead of rivals Chelsea.
The Blues had been favourites in the summer when Maurizio Sarri replaced Antonio Conte as the Chelsea manager.
Many football stakeholders expected Koulibaly to follow in the footsteps of former teammates Jorginho.
The Italian swapped Napoli for Chelsea alongside Maurizio Sarri.
Manchester United have already had a £77m bid rejected for Kalidou Koulibaly according to various reports from the British media.
It was further revealed that it would take a world record bid for a defender to secure his signing from Napoli.
Manchester United will have to spend at least £90m on him.