Chelsea star drops massive hint of Real Madrid return
Morata, 25, has scored 10 Premier League goals this season after arriving from Madrid for a reported £60 million in July last year.
The Spain international is currently sidelined with a back injury, with head coach Antonio Conte unsure when to expect the forward to return.
In an interview with Movistar+, to be aired in full later this month, Morata said he was happy at Stamford Bridge, but he may be interested in heading back to Madrid.
"Obviously I have to respect Chelsea, who made a huge effort to sign me and I'm very happy here," he said.
"But Madrid will always be Madrid for me."
Any speculation over the Spanish striker's future will be most unwelcome at Stamford Bridge, with boss Conte's own future with the club seemingly up in the air.