Italy legend Filippo Inzaghi has outlined the areas Kylian Mbappe must improve upon if he is to reach Cristiano Ronaldo's level.
Two of world football's biggest names go head to head on Wednesday evening when France face Portugal in the group stages of Euro 2020.
Les Bleus know their place in the knockout stages is already guaranteed but will be out to secure top spot in Group F and a kinder last-16 draw.
Portugal, meanwhile, are at risk of crashing out of the tournament unless they secure at least a point from their meeting with the world champions.
Mbappe and Ronaldo are likely to have a big say for their respective teams but Inzaghi believes one man might find it easier to influence proceedings thanks to his starting position.
"Being the main point of reference up front could be an advantage for Ronaldo, but he could be an easier target for defenders," he told La Gazzetta dello Sport.
"Mbappe can look for spaces and sometimes he can hide."
Mbappe is often hailed as a potential successor to Ronaldo - or indeed Lionel Messi, dependent on taste - as the world's best player.
But Inzaghi feels the Frenchman, who has scored 78 goals in 80 Ligue 1 appearances over the last three seasons, is capable of showing a greater killer instinct in the box.
"Ronaldo was unique in the central part of his career at Real Madrid," he added.
"Now Mbappe is in Paris, then we'll see. For now, he doesn't seem attracted by goals as Cristiano is.
"Mbappe's dribbling in tight spaces and his change of pace are stunning. It really looks like he has gears in his legs.
"Even more, it looks easy for him to make the difference, even in one metre. He can be devastating, whether he has space or not.
"However, Cristiano's heading and ability to lose his marker are unreachable, and he is so accurate whether he shoots with his right or left foot.
"This is something Mbappe still needs to improve."