Professional baseball players with a low-grade elbow injury that occurs on the humeral side of the elbow have a better chance of returning to throw and returning to play, and a lower risk of ulnar collateral ligament surgery than players who suffered more severe injuries on the ulnar side of the elbow. The research was presented at the Annual Meeting of the American Orthopedic Society of Sports Medicine.
source https://www.lifetechnology.com/blogs/life-technology-news-blog/outcomes-of-non-operatively-treated-elbow-ulnar-in-professional-baseball-players