The move comes after The Sun on Sunday told last week that a police probe had been launched.
A concierge worker — born in England to Senegalese–Gambian parents — said the footballer twice called him the N-word after arriving in the early hours smelling of alcohol and demanding a key.
The alleged victim, 50, said: “I don’t follow football.
“The development is a place with lots of very rich people.
“It is my job to make sure the place is safe.
“After he had gone, my colleague told me he is a famous footballer. I was shocked.
“I felt sick to the pit of my stomach.”
The incident reportedly occurred on December 10.
Police said: “On Friday a man in his 30s was voluntarily interviewed.
“He was not arrested. Inquiries continue.”