Barcelona head coach Hansi Flick accused Spain of "not taking care" of Lamine Yamal during the international break after the forward was ruled out of Sunday's LaLiga match against Valencia.
Yamal, 18, featured in Spain's World Cup qualifying wins against Bulgaria and Turkey last week despite managing pain in the groin area.
As a result, he will miss this weekend's visit from Valencia and is also a doubt for Thursday's opening game in the Champions League away at Premier League side Newcastle United.
"Lamine goes to the national team with pain, didn't train, had painkillers to play, they were three goals ahead in every match, and he played 79 and 73 minutes," Flick said in a news conference Saturday.