Xavier Nady will be tested for Crohn's disease on Monday, the PG reports. Nady's cousin has Crohn's disease, raising the odds that Nady might. Crohn's disease, also known as inflammatory bowel disease, is an autoimmune disease that results in chronic intestinal inflammation. Nady should still be able to play, but this would be real bad news. We wish X and his gut the best and hope for a quick return to health.