Chelsea are closing in on a deal to sign Kalidou Koulibaly from Napoli.
The deal is expected to be closed on Wednesday for a fee of between £32m (€38m) and £33.7m (€40m).
The central defender, who has 62 caps for Senegal, is also expected to be offered a five-year contract worth around £160,000 per week (£8.2m a year) net plus bonuses to move to Stamford Bridge.
Koulibaly, who was also interesting Juventus, has just one year left on his Napoli contract.
Napoli held their first open training session of the summer in front of fans on Tuesday evening, however, Koulibaly was not present.
The Blues lost Antonio Rudiger to Real Madrid and Andreas Christensen to Barcelona this summer – both on free transfers – leaving Thiago Silva, Trevoh Chalobah and Malang Sarr as the only senior centre-backs in Thomas Tuchel’s squad.
Koulibaly, 31, has made over 300 appearances for the Serie A club since joining from Belgian side Genk eight years ago, being named in the Serie A team of the year on four occasions, as well as being named the best defender in Italy in 2019.
As well as Koulibaly, Chelsea have an interest in Manchester City’s Nathan Ake, Sevilla’s Jules Kounde, RB Leipzig’s Josko Gvardiol and Paris Saint-Germain’s Presnel Kimpembe.
The Blues are also keen on Juventus’ Matthijs de Ligt, but he reportedly favours a move to Bayern Munich.
Meanwhile, Raheem Sterling is set to become Chelsea’s first signing since the consortium led by Todd Boehly completed its takeover of the club. The City forward underwent a medical on Sunday ahead of his £47.5m move to Stamford Bridge.