The Mirror says Mourinho is set to seal the £3.5million signing of Atsu.
Liverpool manager Brendan Rodgers had been chasing the 21-year-old Ghana international, but failed to agree a fee with his Portuguese club.
Atsu, who has a year remaining on his contract, is now set to travel to England for a medical and to discuss personal terms.
It is unclear whether the player, who had also been tracked by his former Porto boss Andre Villas-Boas at Spurs this summer, will be part of Mourinho's plans immediately or go out on loan.
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