It was the great Brazilian Ronaldo who taught Pierre-Emerick Aubameyang an unforgettable and early lesson about the value of efficiency as a striker.
Chelsea striker Aubameyang said: 'I will always remember when Carlo Ancelotti had a go at him about his fitness and Ronaldo said, 'What do you want me to do, run or score goals?' Ancelotti said, 'Score goals' and the next time Ronaldo scored twice!'
'That is part of the character and as a striker you need that because you have to be strong mentally.'
Aubameyang's days at AC Milan were on his mind ahead of a Champions League reunion with his first senior club on Wednesday, where he got to witness the likes of Ronaldo up close.