"<he pulled a hamstring because he was overweight..."
Pablo's hamstring had NOTHING to do with weight issues...
What happened to Sandoval would have happened to anyone stretching that far. Got back and look real close to what happenend.
When Pablo stretched, a real 1B knows to dig with his heel and keep his toes as parallel to the ground as he can so he can stop the stretching when he wants. What happened with Pablo was the back part of the shoe was on the ground sliding and there was no way to stop the leg from stretching further. That is why he fell to the side.