Originally Posted by 5263
Why would you look at sidespin from above??
sidespin would only seem relevant as it relates to hitters view imo.
What is boll's sidespin??
before you said Nadal had no sidespin, right??
so why does his Fh curve so much?
do you really want to find something meaningful or just debate and confuse?
Ball rotation about vertical axis is sidespin. It is common practice to define direction of the sidespin from above or below view.