Yamal was key in helping FC Barcelona to a domestic treble of league, Copa del Rey and Super Cup titles last season and has continued his meteoric rise this season as he aims to win the Ballon d'Or.
The 18-year-old suffered from serious groin problems that affected him early this season, but has still played 44 matches for Barcelona, scoring 23 goals and providing 18 assists as he aims to feature in every game.
Speaking to AS, Gullit has admitted that he is worried about the teenager who could be pushed to hard by the Spanish giants as they try and put him up against the best players on the planet.
"It's not normal. The only thing is, the team depends on him a lot. And he's a very young player. I'm really worried he'll get injured because they use him all the time.
“And they say, 'Yes, but he's young.' But you saw it with Pedri, with Gavi. They have to play in a World Cup. Then you go to play in a World Cup with the youngsters and then you get injured.
“And coming back from an injury is tough. So I hope it doesn't happen again. Therefore, I love what he does."
If Yamal is to lift the Ballon d'Or, he must win La Liga as well as either the World Cup with Spain in the summer. This means featuring in every game possible for the youngster who is already being pushed to the limit physically, therefore worrying Gullit even further.