The Dutch midfielder came off in the first half of the clash and was replaced by Gavi.
De Jong will reportedly miss league games against Real Mallorca and Sevilla this week and two Champions League group stage fixtures.
De Jong will be a massive miss for club and country after starting the season in stellar form.
The 26-year-old helps control and dictate play for Xavi Hernandez’s side.
De Jong is in the 98th percentile for passes attempted and in the 97th for passes completed. He is in the 97th percentile for progressive passes and the 95th percentile for progressive carries.
His manager spoke on his absence from their coming games, saying: ‘It’s a big loss. It’s a tough one because of the way we play and the level he has been at.
“He’s a key player for us. He has been really good since last season.
“We have options to come in for him, so hopefully, we won’t suffer too much. We will see how he is after the [October] international break. That’s all we can say for now.”
De Jong will join Pedri on the sidelines. The talented Spaniard has been out of action for over a month, and there is no time frame for his return.
However, Xavi explained that Pedri was close to returning to action but did not give an exact date or match to expect him on the pitch.
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