i would like the record to indicate that my question was about the pronunciation of his name 
he didn't use the tilde until he moved to miami. btw, i found this delightful quote from him in an old article about art that everyone has already read, but maybe didn't see the quote. which is why i dug up this thread.
Manu is adorable and will have to be aware of all the girls who are going to be interested in him,” Larrañaga said. “He is a very good-looking young man, smart and has a very mature way of approaching his schoolwork and basketball. I am very, very impressed with him as a person