These modern day phenomena cause injuries:
1. Astroturf, esp. aging Astroturf;
2. Radar Guns;
3. Weight Rooms;
4. Steroids, Andro, and other performance enhancers that we as fans do not know about.

Team Doctors now, due to many lawsuits since the early '80s, have discovered a duty to their teams' players as patients. Thus many players are being treated as opposed to being patched up. The players' union has made the owners pay for second opinions; and Drs. Andrews, Jobe et al. are buffers to owner paid team physicians. Further, the 3 cortisone shot rule is being more closely adhered to.