Ferrer went on to claim his fourth-straight Heineken Open title, equalling the record set by Australian great Roy Emerson at New Zealand's premier tournament, and the world No 4 will attempt to break that record in January when he plays in Auckland for the 10th time.
Ferrer has had another terrific year, winning two titles and making the last eight in all four major tournaments, including the French Open when he was beaten by Nadal in his first grand slam final.
He will once-again be the top seed at the Heineken Open and will be joined by South African Kevin Anderson, who has risen from 37 to 21 this year and could end 2013 among the world's top 20. Anderson is coached by former New Zealand professional GD Jones and has beaten Ferrer and world No 11 Milos Raonic this year.
Monfils, Ferrer and Anderson were the first players confirmed for next year's tournament and Budge is confident of adding at least two more top-20 players in the coming weeks.
"There are no guarantees Kevin will be among the top four seeds,'' Budge said. "I think that's a glowing endorsement of the depth we are looking to build this year.''
Budge was also hoping to lure a couple of up-and-comers but ruled out world No 8 Jo-Wilfred Tsonga, who had been a target. Novak Djokovic, Nadal and Andy Murray, the world's top three players, and Roger Federer are extremely unlikely and one might play only if they were bundled out early from their first tournament of the year and needed some extra match practice ahead of the Australian Open.
The first names for the ASB Classic will be announced in the next fortnight but Agnieszka Radwanska won't be back to defend her title and will play for Poland in the Hopman Cup in Perth instead.