But theDaily Mailsays Zouma prefers to stay in London, and West Ham are looking to capitalise.
The Hammers are preparing to offer £20m for the 26-year-old.
Kounde, 22, has a £68.4m release clause in his contract.
Chelsea could use the money from Zouma's sale to fund a move for Kounde, who can play at centre-back and right-back.
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