The article claims the move is to air on the side of caution and I won't pass a judgment on that statement.
The interesting bit I took from it was this:
"Pitching coach Dewey Robinson may have figured out why Rodriguez seems to always hurt himself in the same area, both on his left and right sides. Robinson plans to work with Rodriguez in an effort to create less torque in the left-hander's delivery, while the athletic training staff will come up with a program designed to strengthen Rodriguez's midsection."
Get well soon Wandy...PLEASE