Leeds United will look to establish a clearer timescale for Patrick Kisnorbo's comeback once the defender returns from a spell of rehabilitation in America.
Kisnorbo has been sent across the Atlantic to continue his recovery from the serious injury he suffered in March, and Leeds remain hopeful that he will yet play some part in their Championship season.
The Australian international underwent surgery on a ruptured Achilles tendon almost nine months ago and his absence will extend into the New Year, despite initial hopes that he might return to contention before the end of 2010.
Grayson said: "He's in America doing some rehab after a check-up with the surgeon.
"He's due back any time now but he's coming along nicely. There's no timescale with him yet but it'll be nice to have him back in the building. We'll take it from there and look at when he's going to be fit."
Kisnorbo made a major impact at Elland Road last season, his first as a Leeds player, and he was named as the club's player of the year following their promotion from League One.
But the injury he suffered in a 2-0 defeat to Millwall on March 22 forced him to miss the end of the domestic season and also denied him a place in Australia's squad for the 2010 World Cup.
Kisnorbo's prolonged spell on the sidelines has delayed contract talks with a centre-back whose existing deal expires at the end of this season, but manager Simon Grayson said he was optimistic that the 29-year-old would be available before their final Championship game on May 8.
"I'm still hopeful that he'll play some part in the season," Grayson said.
"But that will obviously be dictated by the physios and the surgeon. He's had a major injury and to get him back at any time will be a big
United, meanwhile, have confirmed that young defender Tom Lees is to sign a two-and-a-half year extension to his contract at Elland Road.
The 20-year-old, United, meanwhile, have confirmed that young defender Tom Lees is to sign a two-and-a-half year extension to his contract at Elland Road.
The 20-year-old, who is currently on loan at League Two club Bury, will put pen to paper on Monday.
The Whites are also preparing to allocate tickets for their FA Cup clash with Arsenal after receiving more than 13,000 applications.
United have been given an allocation of 8,500 seats for the third-round tie at the Emirates Stadium on Saturday, January 8.