Koulibaly told GiveMeSport: "I hope he will continue to score. We know for all strikers life is goals, and Nicolas is no different. He has a good attitude and personality. And for me, he'll become the story of Senegal, just like Sadio Mane did. I am always telling him he has to follow Mane. And I hope he will be the best player in Africa and why not in the world? He has the talent, so all things are at his feet. Nicolas has to believe he can be this good. That is the most important thing. All the players who have won the Ballon d'Or believed they could. They all thought they could win this trophy. So you have to put this in Nicolas' head. Of course, I don't tell him to be selfish and ignore his teammates, but he has to think about the Ballon d'Or, and if you put this image in his head, he can achieve it. And that's what I tell him all the time."