"He is probably the player we are asked about most if he will be returning. He is loved by fans here and maybe this will be their last time to see someone who is very special for us in Auckland."
Ferrer has won 27 titles in his 17 years on tour, reached a career high ranking of No3 in the world and won the ATP Tour Finals in 2012.
He sits seventh on the all-time leading prizemoney list.
Ferrer is said to be one of the best players to never win a grand slam. He has been right there with the top four players — Roger Federer, Rafael Nadal, Novak Djokovic and Andy Murray — for the last decade. While a grand slam might be out of his reach now, a fifth ASB Classic isn't and the Spaniard is gunning to make that happen.
"Maybe I have one more title there," said Ferrer.
The men's field is now taking shape with four former champions returning (Ferrer, Jack Sock, John Isner and Roberto Bautista-Agut) and four next generation players (Denis Shapovalov, Andrey Rublev, Hyeon Chung, Karen Khachanov) confirmed for the January event.
"With the likes of Ferrer and Bautista not going to be in our top four seeds, the opening days are going to have some intense battles," said Budge.
All of our young stars, hopefully a Kiwi and possibly three former champions will all have to play Monday and Tuesday. Imagine a Shapovalov versus Ferrer battle on opening night."
• The ASB Classic will span for two weeks; the women's tournament from January 1-6 followed by the men's from January 8-13.