The Nigeria Football Federation says Chelsea midfielder John Obi Mikel should be fit for their World Cup warm-up match with Colombia in London on 30 May. There had been doubts after the 23-year-old suffered ankle ligament damage at Tottenham last Saturday.
"Fortunately the damage does not limit his chances of playing at the World Cup as feared," NFF spokesman Ademola Olajire told BBC Sport.
"He will be able to take a major part in training sessions," he added.
"Mikel and Chelsea confirmed that he suffered an injury setback, but he should recover quicker than thought."
He will however miss the rest of the season for Chelsea.
