Werner Schlager's Serve

How to execute Schlager's serve? His serve has massive sidespin especially when serve into his opponents forehand. Why is it so effective? Is it because of his standing position?

http://www.youtube.com/watch?v=ZYKvhtCE0XQ

0:26

Hi Khang,

He certainly does get a lot of sidespin on his serves.  I think that Schlager's biggest asset is his ability to disguise what he is doing and his brain.  He is very clever and always seems to put the ball in awkward places for his opponent.

To get that amount of sidespin he is brushing the side of the ball very quickly.  That gets the curve on the ball.  In this serve he uses the high toss as well which will help him to get more sidespin.