Nigeria put itself on a collision course with FIFA in July.
Spokesperson for Enugu state police in southeast Nigeria said John Obi Mikel paid a ransom of about 28,000 US dollars.
Diego Maradona denied rumors of ill health the day after, telling reporters: "I'm perfect. I've never been better."
Lionel Messi took a journalist's suggestion seriously, leaving him awestruck.
A video posted on Twitter after Tuesday's game showed Maradona needing help to walk as Argentina survived in the World Cup thanks to a late goal.
Messi's quest for World Cup glory faces a much tougher test on Saturday as Argentina face a highly-fancied France side in the last 16.
Marcos Rojo scored the winner for Argentina as they beat Nigeria 2-1. Argentina will face France in the Round of 16.
Argentina have to get past Nigeria in their last league match to qualify for the knockouts.
Argentina, with only one point from two matches, are teetering on the edge of inglorious elimination.
Argentina face Nigeria in a must-win FIFA World Cup match in Saint Petersburg on June 26.
Iceland got a lifeline in the 82nd minute with a VAR-awarded penalty but dead-ball specialist Gylfi Sigurdsson blazed over the bar.
FIFA World Cup 2018, Live Football Match Score Nigeria vs Iceland: Ahmed Musa was the standout player as Nigeria beat Iceland 2-0
Messi complained that "Iceland didn't want to play" but the Nordic minnows, playing in their first-ever World Cup, were unimpressed by the criticism.
Iceland are buoyant after what their coach Heimir Hallgrimsson described as a "schoolbook example" of how to defend against Lionel Messi's Argentina.
A Luka Modric penalty and an own goal from Oghenekaro Etebo gave former semi-finalists Croatia an easy 2-0 win over Nigeria in their World Cup Group D opener.
African players and nations have often had to deal with a lot of racist insults during matches.
Croatia vs Nigeria will promise to be a teasing affair as two of the most enigmatic teams meet for their first World Cup 2018 match.