Tottenham have turned down an approach from Juventus for Tanguy Ndombele.
The deal would have seen Aaron Ramsey join Mourinho's team in a straight swap.
The Telegraph says Juventus were interested in signing Ndombele but were told that the midfielder is in Mourinho's plans.
That is despite Ndombele having made just one substitute appearance for Tottenham since the Premier League's restart.
Ramsey, meanwhile, is likely to leave Juventus this summer having struggled to make a major impact following his arrival on a free transfer when his contract expired at Tottenham's rivals Arsenal.
Ndombele joined Tottenham last summer from Lyon for a club record fee of £53.8million but he has struggled to justify that price tag so far.