ADELAIDE United's football department will meet Monday to discuss the possible signing of Socceroos veteran Lucas Neill.

Neill, 35, is off contract next month but his J-League club Omiya Ardija has an option to retain the Socceroos defender for another season.

Reds coach Josep Gombau confirmed Neill is a player attracting interest given Adelaide's had its share of defensive calamities this season, including Chris Harold's equaliser in a 1-1 draw with Perth Glory at nib Stadium on Saturday.

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Neill showed defensive versatility for Omiya when he played at left back in a 2-1 loss to Ventforet Kofu eight days ago.

"There is a lot to talk about with Neill and we need to discuss this as a group together with the club," Gombau said.

"But it's just not my responsibility, we have football directors we have owners and we need to have a meeting to see what we want to do. Tuesday we'll sit down and ... we'll decide what's best for the club."

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Neill is in Socceroos camp preparing for coach Ange Postecoglou's debut match when Australia faces Costa Rica in Sydney on Tuesday night.

With Postecoglou claiming the Socceroos need to play regular matches to have any chance of making the 2014 World Cup squad, Adelaide may well be a realistic option for the Australian captain - at least until Postecoglou says the armband will be awarded to another player.

Gombau hopes Neill and Reds Socceroo Michael Zullo feature against Costa Rica.

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But after Neill joined Omiya in August, according to Japanese sources, the chances of the club retaining him for the 2014 J-League season are slim.

Omiya is contemplating another change of coach after it started the 2013 season as a leading premiership contender under Slovenian boss Zdenko Verdenik before Tsutomu Ogura was appointed as club boss in August. The club was leading the J-League premiership table in July but disastrous consecutive losses saw Omiya scrap to avoid relegation.

Omiya on December 7 ends its J-League premiership campaign safely clear of relegation but the club is too far away from claiming a 2014 AFC Champions League spot.

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Omiya on Saturday night was knocked out of the Emperor's Cup fourth round after a 3-0 loss to FC Tokyo.

Nonetheless, Omiya officials confirmed Neill's contract was up for discussion.

Capped 95 times, Neill last month equalled 1974 World Cup Socceroo Peter Wilson's 60-game record for wearing the captain's armband in a 3-0 win over Canada at London's Craven Cottage.

With Adelaide having one spot available before its 23-man squad is at its A-League limit, the club could either fit Neill in the salary cap or make him an Australian marquee, a spot now vacant after Dario Vidosic was sold to Switzerland's Sion during the mid-year FIFA transfer window.

Neill's management did not return calls, text messages or emails on Sunday.