The American twist is a combination of a slice and kick serve. This serve was used by both Pete Sampras and Andre Agassi to great advantage. Learn about American twist serves intennis from a professional instructor in this free sports video. Expert: Jason Gerardo Bio: Jason Gerardo is a tennis professional at Gold Key Racquet Club in Phoenix. Over the years he has worked with youth tennis players, as well as adult players, in singles and doubles. Filmmaker: Bill Zervakos ... tennis instruction ...