Paris St-Germain forwards Edinson Cavani and Kylian Mbappe will be out for four and three weeks respectively.
They came off during Sunday’s 4-0 Ligue 1 win over Toulouse, with Cavani injuring his hip and Frenchman Mbappe, 20, picking up a hamstring problem.
Both players will miss at least two league games for the French champions.
Neymar is suspended for the first three games of this season’s competition, although the 27-year-old Brazil forward has been linked with a return to Barcelona before the European transfer window closes on 2 September.
Cavani will be unavailable for Uruguay’s friendlies against Costa Rica and the United States, while Mbappe will miss France’s home Euro 2020 qualifiers against Albania and Andorra.