Players union Fifpro says it is helping Nigeria's Women's World Cup squad in "a disagreement with the Nigeria Football Federation" over unpaid bonuses, allowances and expenses - some which it claims date back to 2021.
The Super Falcons were eliminated from the tournament in Australia and New Zealand on Monday after losing a penalty shootout against England in a last-16 tie in Brisbane.
In a statement released on Tuesday, Fifpro said: "During the World Cup, the players expressed the desire to remain focused on their performance without making public statements or facing other distractions.
"However, the Super Falcons believe that it is now time for the Nigeria Football Federation (NFF) to honour their commitments and pay the outstanding amounts".
The Super Falcons are Africa's most successful international women's side, having won the Women's Africa Cup of Nations (Wafcon) nine times and also qualified for all nine Women's World Cups.
Yet this is far from the first time they have found themselves at loggerheads with their federation over money, with disputes dating back to 2004.
More recently, at the 2019 World Cup in France, they staged a sit-in protest following a second-round defeat to Germany, while players boycotted training before the nation's third-place play-off at last year's Wafcon in Morocco.
At the time, a special adviser to then-minister of sports Sunday Dare said the "issues are being resolved" and verbal assurances were given to the squad.
But a month later, BBC Sport Africa was told players were still waiting.
Before this World Cup, American coach Randy Waldrum claimed he was owed seven months' salary and some of his players had not been paid for two years.
Fifpro said it was "extremely frustrating" the issue had
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