EE was pulling scraper out of belt line. EE had ribcage pressed against belt assembly. The weight of the scraper was heavier than employee anticipated. Before EE let go of the scraper EE felt a strain in EE's ribs. After medical assessment it was treated as a first aid. On 1/6/21 the pain was still present and the ee returned to the doctor. Was placed on light duty until 1/10/21.