"I know it's complicated because the injury isn't easy and because there are few days left to recover, but I know that the desire, the attitude and the commitment he'll have to be there, although it doesn't depend much on him".
The South Americans have conceded just one goal - the joint lowest in the tournament with Brazil - in four straight wins on their way to the showdown here.
Les Bleus are already even money (2.0) favourites to see off Uruguay in normal time and will be in good spirits after beating Argentina 4-3 in the last 16.
All eyes were on Antoine Griezmann coming into the World Cup but Mbappe has emerged as the main star for the French, with the teenager scoring twice and winning a penalty against Argentina.
"About Mbappe, everybody knows he's a really good player".
"Today we committed a mistake that led to the equaliser but we have a very strong team in terms of mindset", Tabarez added, citing the value of his team's "intensity, focus and tactical intuition".
"I felt pain in my calf and could not continue on the field". "Making them respect us".
Cavani scored two brilliant goals against Portugal in Uruguay's 2-1 last 16 victory on Saturday, before limping off with the assistance of Cristiano Ronaldo.
He is fighting for fitness.
Indeed, despite their string of honours, neither Messi nor Ronaldo has tallied a World Cup knockout goal in their careers.