http://www.breitbart.com/big-government/2017/02/24/pinkerton-the-american-way-of-winning-the-war-against-disease/
The article above is very interesting in that it describes how the American medical system may not be the best in every area but we have a very effective system for treating health issues overall.
Relative to the life of tennis players injuries, inflammation, and degenerative diseases can shorten your tennis career so following the standard medical advice for managing and preventing these problems is something worth considering.