A lot of people are saying Rafael Nadal is no longer a competitive giant. That may or may not be true. The real question is "WHY"? Many say it's his confidence, others say well he's 29 now and got old due to his method of play. A major issue that seem's to be overlooked or ignored is the possibility of the long term effects of his appendectomy. In rare cases there is a higher risk for diseases including Crohn's disease. Any avid tennis fan that watches the tennis channel has heard about the effects Crohn's disease can have on a professional tennis player. In a recent medical study the  appendix has shown to be an organ needed to bring back the balance of good bacteria for digesting food and other issues the body has. I wonder has the Nadal family considered this if Rafael is not feeling like he should. Whatever the reason I hope Rafa has another huge comeback!