Tim Cahill is expected to return to Millwall this week.
Cahill, a hugely popular figure at The Den from his first spell as a Lions player, is a free agent after leaving Melbourne City last month.
The 38-year-old has held talks about a return to the south London club and is keen to keep his fitness up ahead of this summer’s World Cup.
He helped Australia qualify by scoring twice in a play-off match against Syria and believes he can still play a role in the tournament.
West London Sport reports that QPR have discussed whether to offer Cahill a short-term deal, but that the club’s hierarchy need to be persuaded that he would be a worthwhile addition given his age.
Rangers manager Ian Holloway is keen to add to his squad but is constrained by financial restrictions at Loftus Road.
Cahill spent seven years at Millwall, where he was a team-mate of QPR first-team coach Marc Bircham as well as Lions boss Neil Harris.
He then spent eight years at Everton, establishing himself as one of the Premier League’s top players.
Cahill has since played for New York Red Bulls and spent time playing in China before returning to his native Australia to join Melbourne in 2016.
He can move after Wednesday’s transfer deadline because he is a free agent.
Meanwhile, Millwall are set to sign defender Harry Toffolo from Norwich.