Onyeka says he has also discussed goals with Nigeria coach Eric Chelle, the Malian who took over in January and revived the Super Eagles’ faltering bid to reach the World Cup.
“I think he came in and changed everything – the way we played, the way we’ve been set up, and his philosophy is just really good,” said Onyeka.
“He’s a loving coach. The way he speaks to the players, he makes fun of the players. It’s just different compared to what we had before.”
Chelle will, however, have to cope with the loss of both his captain, William Troost-Ekong, who announced his international retirement on the eve of the Nations Cup despite being named in the provisional squad, and another centre-back Benjamin Frederick.
The 20-year-old, who like Onyeka is on Brentford’s books, made a big impression after breaking into Nigeria’s starting line-up under Chelle, but will miss the tournament in Morocco after injuring his knee while on loan in Belgium.
“It’s a big blow for us because Benjamin has integrated himself into the (Nigeria) team and everybody loves him,” said Onyeka.
“He has done so well in the games that he has played. We expected him to be a very big part going into the tournament.
“And as a guy, as a player, he’s just outstanding. The way he reads the game defensively is just so strong.”
Perhaps surprisingly, Onyeka admits he did not pay much attention to previous Afcons when he was growing up.
But he is fully aware of what he describes as the “huge” impact the team’s performances have back home.
“Playing for Nigeria is a pressure, but we are used to it.
“If you see some comments every time we lose games, it’s annoying. But I understand them (the fans) because this is something that they love.
“Football is something that makes people happy, brings people together. Every time Nigeria is playing, everyone is interested.”