There have been observant players even in the majors, most notably the great Sandy Koufax, who declined to play on Yom Kippur.
The major leagues have been free of religious observance. 
mnli hypothesis: The major leagues have been free of religious observance.  premise: There have been observant players even in the majors, most notably the great Sandy Koufax, who declined to play on Yom Kippur.