The All Whites could be without their talisman captain Ryan Nelsen for the upcoming friendlies against El Salvador and Honduras in the United States later this month.
Despite Nelsen being named in the latest All Whites squad, coach Ricki Herbert hinted his long-serving central defender and captain would be given extra time to recover from a testing English Premier League season.
"Ryan is extremely committed to both the All Whites and the Olympics but there's a massive doubt whether we'll use him [in the US or the Nations Cup]," said Herbert. "He needs some time to repair himself and we may elect not to take him at all for the All Whites matches at this stage."
Herbert has taken the opportunity to look at some fresh players when naming his squad for the first real steps of the 2014 World Cup campaign.
Selecting the squad for the US warm-up matches - he didn't call them "friendlies" - and for the Oceania Nations Cup which follows, Herbert has given debutantes Tim Payne and Cameron Howieson the chance to further press their claims for the Olympic tournament in London.