¶1ORDER
¶2In his claim for workers’ compensation, the appellant-employee relied on a physician to prove causation for his contraction of a relatively rare and debilitating blood disorder. The employer utilized a physician who testified that there was no causal connection between the on the job accident and the blood disorder. The appellant’s appeal contends the Commission’s award denying compensation was not supported by competent and substantial evidence. Affirmed. Rule 84.16(b).