The striker of "Real" felt discomfort in the thigh region during the game with "Alavés" (3:2) and was replaced in the 80th minute.
The Frenchman will undergo a medical examination in the coming hours. The club pessimistically assesses the player's chances in the match with Atletico, writes Relevo.
Sources at ESPN also claim that the Frenchman will miss three weeks, which includes the matches against Lille in the Champions League and Villarreal in La Liga.
The match between "Atletico" and "Real" will occur on September 29.
