According to the Magnus effect , if you put spin on the ball , where the top of the ball spins over the bottom of the ball , the air on top would slow down .
The air underneath would move relatively quicker ( Blazevich , 2012 ) .
According to the Magnus effect , if you put spin on the ball , where the top of the ball spins over the bottom of the ball , the air on top would slow down and the air underneath would move relatively quicker ( Blazevich , 2012 ) .