MANAUS, BRAZIL - AUGUST 04: Oghenekaro Etebo player of Nigeria celebrates his goal during 2016 Summer Olympics match between Japan and Nigeria at Arena Amazonia on August 4, 2016 in Manaus, Brazil. (Photo by Bruno Zanardo/Getty Images)
Nigeria's player Oghenekaro Etebo (8) celebrates the team's third goal against Japan during the Rio 2016 Olympic Games mens First Round Group B football match Nigeria vs Japan, at the Amazonia Arena in Manaus on August 4, 2016. / AFP PHOTO / RAPHAEL ALVES (Photo credit should read RAPHAEL ALVES/AFP/Getty Images)
MANAUS, BRAZIL - AUGUST 04: Oghenekaro Etebo of Nigeria celebrates scoring his side's third goal during the Men's Olympic Football match between Nigeria and Japan at Arena Amazonas on August 4, 2016 in Manaus, Brazil. (Photo by Chris Brunskill-FIFA/FIFA via Getty Images)
MANAUS, BRAZIL - AUGUST 07: Oghenekaro Etebo player of Nigeria in action during 2016 Summer Olympics match between Sweden and Nigeria at Arena Amazonia on August 7, 2016 in Manaus, Brazil. (Photo by Bruno Zanardo/Getty Images)
MANAUS, BRAZIL - AUGUST 04: Oghenekaro Etebo of Nigeria scores his side's fourth goal from the penalty spot during the Men's Olympic Football match between Nigeria and Japan at Arena Amazonas on August 4, 2016 in Manaus, Brazil. (Photo by Chris Brunskill-FIFA/FIFA via Getty Images)
