Mikel John Obi has insisted that the appearance money row that overshadowed Nigeria’s progress into the last 16 of the World Cup, and led to a training session being cancelled last week, has been resolved, enabling the players to focus all their attention on Monday’s knockout tie against France.

Goodluck Jonathan, Nigeria’s president, had been forced to intervene when the players complained that they wanted the money that they were due for competing in the World Cup, as part of an agreement that was reached with the country’s football federation before the tournament started, paid while they were still in Brazil.

At the president’s request, it is understood that the sports minister, Tamuno Danagogo, flew into Brasília to meet the players at their team hotel and hand over $3.4m (£2m) in cash, which will be divided up among the squad. The sum is approximately 30% of the amount that Nigeria will receive from Fifa for competing in the knockout stage. The Nigeria players are also entitled to 40% of the $9m prize money each country receives for taking part in the second round with further incremental bonuses to follow depending on their progress.

In an story that has echoes of the problems that Ghana and Cameroon also experienced at these finals, Nigeria’s players were not prepared to wait until the end of the tournament, when Fifa distribute the prize money, because of concerns that the individual payments would take too long to arrive. In 2010, the appearance fees were not paid for more than 12 months and there were also problems at last year’s Confederations Cup.

The situation was in danger of seriously damaging Nigeria’s preparations for their first knockout game at a World Cup finals in 16 years until president Jonathan personally spoke to the players to provide them with assurances. Nwankwo Kanu, the former Nigeria and Arsenal striker, tweeted on Sunday to thank the president for “sending [the] minister of sports to come and make the boys happy”.