Chelsea Transfer News: Kalidou Koulibaly, Emanuel Mammana, Latest Blues Rumours

Chelsea are reportedly preparing to bring in defensive reinforcements over the summer and are eyeing both Napoli's Kalidou Koulibaly and River Plate's Emanuel Mammana to bolster their centre-back options. According to Sky (via Salvatore Boemi on TransferMarketWeb), incoming Blues boss Antonio Conte is an admirer of Senegalese Koulibaly, while Mammana is also a Chelsea target despite John Terry recently signing a one-year extension at Stamford Bridge. Koulibaly, 24, has impressed for Napoli s...