Running the bases in cleats is harder on the legs than other types of running. If you are a marathon runner and try putting on cleats to run bases, you will cramp or strain something. Early on in seasons, I have observed that guys get hurt when they get a short red hot steak and find themselves on the bases 3 or more times a game for 3 or 4 games in a row after having been cold or slumping. They cramp up, pull something or experience leg fatigue. Their legs are not fully game ready. Betts went out tonight after being on base 5 of the last 6 ABs, including 3 doubles and 3 runs scored. Holt was hotter than he has been in 3 years. Before he cramped up, he had gone 7 for 8 and 3 doubles. Wilson Ramos raised his batting average from .246 to .308 in the last 4 games and he left tonight's game with leg fatigue. I guess they got too hot too suddenly early in the season for their own good. LOL!