The former Ajax Amsterdam man impressed in the Primera Liga's early matches, scoring four goals for the title holders.

However, the 23-year-old's displays lately did not live up to his potential.

German coach Schuster is not worried about Sneijder's unconvincing displays.

"It's not really about an injury, he has simply played too many games," the former Getafe manager told a press conference.

"He is a very hard worker and a very technical player. He pressurizes well in midfield. I think it is normal for a new player on a team to have ups and downs."

Sneijder sustained an injury in training and was ruled out of Real's league clash against Sevilla, but Schuster hopes to use him in the midweek Champions League game against Olympiakos.

"I think he will be able to play in the Champions League fixture," Schuster added.