Stretching & Posture of the Pros
K. Fahey & M. Ford immediately come to mind for this.
its the rounded shoulders humped neck. slouching, and forward jutting head-neck - spine- head alignment issues.
Yoga, stretching, other style of release would go far to help them recover.
It seems more prevalent I those pros who use a particular style grip &/or those whose technique at applying top spin leaves them open to overrotation of the arm thus rolling over of the shoulder bones& muscles.
Do the pros have PTs on duty or professional masseuse, or yoga instructors on duty at these events?
When I did the FF challenges decades ago, there was a tent full of them to help us and we all took yoga and had stretching classes. To prevent these specific things and others if course.
It brings your head and neck back to align more & better with your body.
These people are going to have some issues in their 40s and 50s, even if they don't feel it now
FMS