Uzoenyi was drafted in to replace injured Elderson Echiejile who was ruled out of the tournament with a muscle tear.
"It would have been sweeter if I had been chosen on merit, which I think I deserve. But I am happy to be given another chance", he told BBC Sport.
"The World Cup is the biggest stage for everyone to play."
"From the beginning coach Stephen Keshi has been with me, treated me like a father will his son, and I have been everywhere with him," he said.
"Even if he asks me to leave now I will still respect his decision but I thank God that I am back in the team and will do my best in the World Cup."
Nigeria kicks off its campaign for the World Cup with the game against Iran on Monday in Curitiba.