Osimhen has registered one goal in two appearances for the Super Eagles in Morocco.
The Galatasaray striker has also had two goals chalked off for offside in the competition.
The 27-year-old managed only one goal at the last AFCON in Cote d’Ivoire.
Chelle labelled Osimhen the best striker in the world.
The Malian also hopes the forward will score many goals at the AFCON 2025 finals.
“To him, I wish lot of goals for my striker, my favorite striker. For me, the best striker in the world. So, I think that he feels good. He’s focused. He’s very focused and I hope this AFCON will be a great AFCON for him.”