“If it’s the elbow, call the surgeon. If it’s the shoulder, call the preacher” (baseball adage)

Baseball pitchers frequently have injuries to a pitching arm. “If it’s the elbow, call the surgeon. If it’s the shoulder, call the preacher” is a baseball adage.
 
“If it’s the elbow call a doctor but if it’s the shoulder call a preacher” was posted on Twitter by Ruben on September 15, 2018. “There is a reason behind the old saying that for pitchers ‘If it’s the elbow, call the surgeon. If it’s the shoulder, call the preacher’” was posted on Twins Daily on May 27, 2019. It’s not known who originated the saying.
     
       
Twitter
Ruben
@rubenchavira
Replying to @stevenbaltierra @Dodgers @theteenager7
If it’s the elbow call a doctor but if it’s the shoulder call a preacher
6:55 PM - 15 Sep 2018
   
Twitter
Ruben
@rubenchavira
Replying to @stevenbaltierra @jorgecastillo and 2 others
If it’s the elbow call a doctor if it’s the shoulder call a preacher
12:37 PM - 24 Feb 2019
 
Twins Daily
Graterol Shoulder Impingement Q&A
Posted by Heezy1323 , 27 May 2019
(...)
There is a reason behind the old saying that for pitchers “If it’s the elbow, call the surgeon. If it’s the shoulder, call the preacher.”