Heineken Open tournament director Karl Budge expects John Isner to play this week, despite an ankle injury that forced the American out of the Hopman Cup.
The world No14, second seed at Auckland, told Australian media yesterday he was still optimistic of playing at the Australian Open in Melbourne, which follows the week after the Heineken Open.
Isner withdrew from his scheduled clash with Radek Stepanek at Perth Arena on Friday night.
"In my previous match I was in a bit of pain," Isner said. "I was able to play through that match but I was practising (on Thursday) and it just wasn't quite feeling right, so unfortunately I had to pull out. I feel awful about this. But what I do know is I don't think it's as severe as what happened to me last year.
"Hopefully I can get fit and get ready for the Australian Open coming up because that's the big one," said Isner.