From GetReligion: Why do Orthodox and Catholics make the sign of the cross differently?
Catholics spontaneously evolved the left to right part in the middle ages.
Protestants just dropped it altogether, but I am not sure why.
Tebow's genuflection (aka Teabowing) made the press froth at the mouth, but the use of the sign of the cross in sports is sort of ignored, probably because the press doesn't see it as anything but superstition. Ah, but is it?