Emenalo, along with first-team coach Paul Clement, are the two major names in the frame as Chelsea look to appoint a new assistant from within the club.
Clement will be on the bench alongside Ancelotti during their Premier League clash with Sunderland.
"Michael Emenalo is doing a fantastic job as head opposition scout and he is already working very close to me," said Ancelotti. "He is already an assistant.
"We will maintain the same type of training, we don't want to change. We have the possibility to maintain how we worked last season. The staff is able to maintain the same job without Ray.
"I have experience in football. Sometimes clubs take these decisions but with experience we move on and we maintain focus."
Emenalo, 42, was a defender during his playing days and became known to Grant during their time at Maccabi Tel Aviv.
He moved to the United States in 1986 where he graduated from Boston University three years later with a degree in international relations with political sciences, having also played college soccer.
He also played in Belgium and Germany before winning the Anglo-Italian Cup with Notts County.
He won 14 caps for Nigeria in total and played in the 1994 World Cup in the United States.