Also, there is no need for off days. Baseball is a non contact sport, and is not strenuous. Aside from the pitchers, most players spend the vast majority of the game standing around or sitting in the dugout. Even 70% of the AB's consist of standing at the plate, then either walking to the dugout or 1st base, or running 90 feet then walking back to the dugout. There is no need for off days in baseball.