TOKYO -- Olympic champion Yuzuru Hanyu will need two-to-three weeks to recover from injuries resulting from a scary collision with another skater in warm-ups at the Cup of China.

Hanyu was diagnosed with bruising to his head and chin on Monday and also hurt his left thigh in Saturday's collision with Yan Han, which left him with blood streaming across his face and neck.

Hanyu was skating backward at a high speed during the warm-ups when he collided with Han and went down hard on the ice. He lay for several seconds on his back before being helped up and treated.

Hanyu returned and finished second but was visibly shaken and fell five times. He received stiches on his head and chin and was checked for a concussion after the competition.